Code
P1683
ALFA ROMEO
P — Powertrain
Motorised throttle recovery fault
AI status
Completed
Completed
100%
Causes
- Carbon build-up or mechanical binding in the throttle body preventing free movement
- Faulty throttle actuator motor or internal throttle body electronics
- Damaged wiring, poor connector contact or corroded terminals to throttle body
- Low battery voltage or poor ground affecting actuator operation
- Faulty accelerator pedal position sensor(s) or signal mismatch
- ECU or throttle control module software/firmware error or need for adaptation/relearn
Symptoms
- MIL (Malfunction Indicator Lamp) illuminated
- Reduced engine power / limp-mode activation
- Erratic or high/low idle
- Poor throttle response, hesitation or inability to accelerate normally
- Possible trouble starting if throttle cannot achieve required position
What to check
- Read stored/active DTCs and freeze frame data with an appropriate scan tool
- Check battery voltage and charging system at rest and under cranking (should be >12.0–12.5 V nominal)
- Visually inspect throttle body connector and wiring for damage, corrosion, or loose pins
- Inspect throttle body for carbon build-up or mechanical obstruction
- Compare accelerator pedal sensor signals and throttle position using the scan tool
- Perform an actuator test (commanded open/close) and observe target vs actual throttle angle
Signal parameters
- Battery/ignition supply voltage to throttle body (V)
- Actual throttle angle/position (%) or degrees
- Target throttle angle/position commanded by ECU
- Throttle actuator motor current (A) or motor drive feedback if available
- Accelerator Pedal Position Sensor 1 and 2 voltages/percent
- CAN/serial communication status between throttle module and ECU (if applicable)
Diagnostic algorithm
- Connect a full-function diagnostic scanner. Record the DTC, freeze frame and any related codes.
- Verify battery and charging system condition. Recharge or replace a weak battery before further testing.
- Visually inspect wiring and connectors at the throttle body and ECU. Repair any damaged wires or poor connections.
- With ignition on, monitor pedal position sensors and throttle position (target vs actual) while gently actuating the pedal. Look for inconsistencies or no movement.
- Command the throttle actuator using the scan tool (actuator test). Observe actual throttle movement and listen for unusual noises. If it fails to follow commands or binds, remove the throttle body for inspection.
- Remove and inspect the throttle body for carbon buildup, sticking plates, or debris. Clean using manufacturer-approved throttle body cleaner if mechanical sticking is present.
- After cleaning, repeat actuator/scan tests. If the throttle now moves correctly, perform the recommended throttle adaptation/relearn procedure per manufacturer instructions.
- If actuator still fails or current draw is abnormal, replace the throttle body assembly (or throttle module) and repeat adaptation/relearn.
- If replacement does not clear the issue, inspect/repair wiring harness power and ground feeds and re-check ECU communication. Consider ECU or throttle control module fault if wiring is confirmed good.
- Clear codes and road-test. Verify no recurrence and that adaptation values are within spec.
Likely causes
- Throttle body is dirty/sticking (carbon deposits) restricting motor recovery
- Intermittent wiring/connector fault at the throttle body (corrosion, broken wire)
- Throttle actuator motor failure or internal throttle module electronics fault
- Low system voltage during recovery (weak battery, bad alternator output, poor ground)
- Incorrect or out-of-range pedal position sensor input causing control mismatch
Fault status
Status
Throttle actuator did not complete the commanded recovery/movement. MIL set. Engine may run in reduced power mode until fault is resolved.
Repair difficulty: Medium
Diagnostic time: 1-3 hours
Similar codes
Repair manuals
Manual library for ALFA ROMEO
89
Browse 89 ALFA ROMEO manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.
ALFA ROMEO
-
ALFA ROMEO: 2024
-
ALFA ROMEO: 2023
-
Stelvio
-
ALFA ROMEO: 2022
-
Stelvio
-
ALFA ROMEO: 2021
-
Stelvio
-
ALFA ROMEO: 2020
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Code
P1683
BUICK
P — Powertrain
Driver 5 Line 3
AI status
Completed
Completed
100%
Causes
- Carbon build-up or mechanical binding in the throttle body preventing free movement
- Faulty throttle actuator motor or internal throttle body electronics
- Damaged wiring, poor connector contact or corroded terminals to throttle body
- Low battery voltage or poor ground affecting actuator operation
- Faulty accelerator pedal position sensor(s) or signal mismatch
- ECU or throttle control module software/firmware error or need for adaptation/relearn
Symptoms
- MIL (Malfunction Indicator Lamp) illuminated
- Reduced engine power / limp-mode activation
- Erratic or high/low idle
- Poor throttle response, hesitation or inability to accelerate normally
- Possible trouble starting if throttle cannot achieve required position
What to check
- Read stored/active DTCs and freeze frame data with an appropriate scan tool
- Check battery voltage and charging system at rest and under cranking (should be >12.0–12.5 V nominal)
- Visually inspect throttle body connector and wiring for damage, corrosion, or loose pins
- Inspect throttle body for carbon build-up or mechanical obstruction
- Compare accelerator pedal sensor signals and throttle position using the scan tool
- Perform an actuator test (commanded open/close) and observe target vs actual throttle angle
Signal parameters
- Battery/ignition supply voltage to throttle body (V)
- Actual throttle angle/position (%) or degrees
- Target throttle angle/position commanded by ECU
- Throttle actuator motor current (A) or motor drive feedback if available
- Accelerator Pedal Position Sensor 1 and 2 voltages/percent
- CAN/serial communication status between throttle module and ECU (if applicable)
Diagnostic algorithm
- Connect a full-function diagnostic scanner. Record the DTC, freeze frame and any related codes.
- Verify battery and charging system condition. Recharge or replace a weak battery before further testing.
- Visually inspect wiring and connectors at the throttle body and ECU. Repair any damaged wires or poor connections.
- With ignition on, monitor pedal position sensors and throttle position (target vs actual) while gently actuating the pedal. Look for inconsistencies or no movement.
- Command the throttle actuator using the scan tool (actuator test). Observe actual throttle movement and listen for unusual noises. If it fails to follow commands or binds, remove the throttle body for inspection.
- Remove and inspect the throttle body for carbon buildup, sticking plates, or debris. Clean using manufacturer-approved throttle body cleaner if mechanical sticking is present.
- After cleaning, repeat actuator/scan tests. If the throttle now moves correctly, perform the recommended throttle adaptation/relearn procedure per manufacturer instructions.
- If actuator still fails or current draw is abnormal, replace the throttle body assembly (or throttle module) and repeat adaptation/relearn.
- If replacement does not clear the issue, inspect/repair wiring harness power and ground feeds and re-check ECU communication. Consider ECU or throttle control module fault if wiring is confirmed good.
- Clear codes and road-test. Verify no recurrence and that adaptation values are within spec.
Likely causes
- Throttle body is dirty/sticking (carbon deposits) restricting motor recovery
- Intermittent wiring/connector fault at the throttle body (corrosion, broken wire)
- Throttle actuator motor failure or internal throttle module electronics fault
- Low system voltage during recovery (weak battery, bad alternator output, poor ground)
- Incorrect or out-of-range pedal position sensor input causing control mismatch
Fault status
Status
Throttle actuator did not complete the commanded recovery/movement. MIL set. Engine may run in reduced power mode until fault is resolved.
Repair difficulty: Medium
Diagnostic time: 1-3 hours
Similar codes
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Code
P1683
CADILLAC
P — Powertrain
Driver 5 Line 3
AI status
Completed
Completed
100%
Causes
- Carbon build-up or mechanical binding in the throttle body preventing free movement
- Faulty throttle actuator motor or internal throttle body electronics
- Damaged wiring, poor connector contact or corroded terminals to throttle body
- Low battery voltage or poor ground affecting actuator operation
- Faulty accelerator pedal position sensor(s) or signal mismatch
- ECU or throttle control module software/firmware error or need for adaptation/relearn
Symptoms
- MIL (Malfunction Indicator Lamp) illuminated
- Reduced engine power / limp-mode activation
- Erratic or high/low idle
- Poor throttle response, hesitation or inability to accelerate normally
- Possible trouble starting if throttle cannot achieve required position
What to check
- Read stored/active DTCs and freeze frame data with an appropriate scan tool
- Check battery voltage and charging system at rest and under cranking (should be >12.0–12.5 V nominal)
- Visually inspect throttle body connector and wiring for damage, corrosion, or loose pins
- Inspect throttle body for carbon build-up or mechanical obstruction
- Compare accelerator pedal sensor signals and throttle position using the scan tool
- Perform an actuator test (commanded open/close) and observe target vs actual throttle angle
Signal parameters
- Battery/ignition supply voltage to throttle body (V)
- Actual throttle angle/position (%) or degrees
- Target throttle angle/position commanded by ECU
- Throttle actuator motor current (A) or motor drive feedback if available
- Accelerator Pedal Position Sensor 1 and 2 voltages/percent
- CAN/serial communication status between throttle module and ECU (if applicable)
Diagnostic algorithm
- Connect a full-function diagnostic scanner. Record the DTC, freeze frame and any related codes.
- Verify battery and charging system condition. Recharge or replace a weak battery before further testing.
- Visually inspect wiring and connectors at the throttle body and ECU. Repair any damaged wires or poor connections.
- With ignition on, monitor pedal position sensors and throttle position (target vs actual) while gently actuating the pedal. Look for inconsistencies or no movement.
- Command the throttle actuator using the scan tool (actuator test). Observe actual throttle movement and listen for unusual noises. If it fails to follow commands or binds, remove the throttle body for inspection.
- Remove and inspect the throttle body for carbon buildup, sticking plates, or debris. Clean using manufacturer-approved throttle body cleaner if mechanical sticking is present.
- After cleaning, repeat actuator/scan tests. If the throttle now moves correctly, perform the recommended throttle adaptation/relearn procedure per manufacturer instructions.
- If actuator still fails or current draw is abnormal, replace the throttle body assembly (or throttle module) and repeat adaptation/relearn.
- If replacement does not clear the issue, inspect/repair wiring harness power and ground feeds and re-check ECU communication. Consider ECU or throttle control module fault if wiring is confirmed good.
- Clear codes and road-test. Verify no recurrence and that adaptation values are within spec.
Likely causes
- Throttle body is dirty/sticking (carbon deposits) restricting motor recovery
- Intermittent wiring/connector fault at the throttle body (corrosion, broken wire)
- Throttle actuator motor failure or internal throttle module electronics fault
- Low system voltage during recovery (weak battery, bad alternator output, poor ground)
- Incorrect or out-of-range pedal position sensor input causing control mismatch
Fault status
Status
Throttle actuator did not complete the commanded recovery/movement. MIL set. Engine may run in reduced power mode until fault is resolved.
Repair difficulty: Medium
Diagnostic time: 1-3 hours
Similar codes
Repair manuals
Manual library for CADILLAC
206
Browse 206 CADILLAC manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.
CADILLAC
-
CADILLAC: 2021
-
Escalade
- Luxury, 3.0L Eng VIN T, 4WD
- Luxury, 3.0L Eng VIN T, RWD
- Luxury, 6.2L Eng VIN L, 4WD
- Luxury, 6.2L Eng VIN L, RWD
- Premium Luxury, 3.0L Eng VIN T, 4WD
- Premium Luxury, 3.0L Eng VIN T, RWD
- Premium Luxury, 6.2L Eng VIN L, 4WD
- Premium Luxury, 6.2L Eng VIN L, RWD
- Premium Luxury Platinum, 3.0L Eng VIN T, 4WD
- Premium Luxury Platinum, 3.0L Eng VIN T, RWD
- Premium Luxury Platinum, 6.2L Eng VIN L, 4WD
- Premium Luxury Platinum, 6.2L Eng VIN L, RWD
- Sport, 3.0L Eng VIN T, 4WD
- Sport, 3.0L Eng VIN T, RWD
- Sport, 6.2L Eng VIN L, 4WD
- Sport, 6.2L Eng VIN L, RWD
- Sport Platinum, 3.0L Eng VIN T, 4WD
- Sport Platinum, 3.0L Eng VIN T, RWD
- Sport Platinum, 6.2L Eng VIN L, 4WD
- Sport Platinum, 6.2L Eng VIN L, RWD
-
Escalade ESV
- Luxury, 3.0L Eng VIN T, 4WD
- Luxury, 3.0L Eng VIN T, RWD
- Luxury, 6.2L Eng VIN L, 4WD
- Luxury, 6.2L Eng VIN L, RWD
- Premium Luxury, 3.0L Eng VIN T, 4WD
- Premium Luxury, 3.0L Eng VIN T, RWD
- Premium Luxury, 6.2L Eng VIN L, 4WD
- Premium Luxury, 6.2L Eng VIN L, RWD
- Premium Luxury Platinum, 3.0L Eng VIN T, 4WD
- Premium Luxury Platinum, 3.0L Eng VIN T, RWD
- Premium Luxury Platinum, 6.2L Eng VIN L, 4WD
- Premium Luxury Platinum, 6.2L Eng VIN L, RWD
- Sport, 3.0L Eng VIN T, 4WD
- Sport, 3.0L Eng VIN T, RWD
- Sport, 6.2L Eng VIN L, 4WD
- Sport, 6.2L Eng VIN L, RWD
- Sport Platinum, 3.0L Eng VIN T, 4WD
- Sport Platinum, 3.0L Eng VIN T, RWD
- Sport Platinum, 6.2L Eng VIN L, 4WD
- Sport Platinum, 6.2L Eng VIN L, RWD
-
CADILLAC: 2020
-
CADILLAC: 2019
-
CT6
- Luxury, 2.0L Eng VIN K · 2.0L Eng VIN K2019: CT6 Luxury
- Luxury, 3.6L Eng VIN S · 3.6L Eng VIN S2019: CT6 Luxury
- Platinum, 3.0L Eng VIN 6 · 3.0L Eng VIN 62019: CT6 Platinum
- Platinum, 4.2L Eng VIN J · 4.2L Eng VIN J2019: CT6 Platinum
- Premium Luxury, 2.0L Eng VIN K · 2.0L Eng VIN K2019: CT6 Premium Luxury
- Premium Luxury, 3.6L Eng VIN S · 3.6L Eng VIN S2019: CT6 Premium Luxury
- Sport
- V
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Code
P1683
CHEVROLET
P — Powertrain
Driver 5 Line 3
AI status
Completed
Completed
100%
Causes
- Carbon build-up or mechanical binding in the throttle body preventing free movement
- Faulty throttle actuator motor or internal throttle body electronics
- Damaged wiring, poor connector contact or corroded terminals to throttle body
- Low battery voltage or poor ground affecting actuator operation
- Faulty accelerator pedal position sensor(s) or signal mismatch
- ECU or throttle control module software/firmware error or need for adaptation/relearn
Symptoms
- MIL (Malfunction Indicator Lamp) illuminated
- Reduced engine power / limp-mode activation
- Erratic or high/low idle
- Poor throttle response, hesitation or inability to accelerate normally
- Possible trouble starting if throttle cannot achieve required position
What to check
- Read stored/active DTCs and freeze frame data with an appropriate scan tool
- Check battery voltage and charging system at rest and under cranking (should be >12.0–12.5 V nominal)
- Visually inspect throttle body connector and wiring for damage, corrosion, or loose pins
- Inspect throttle body for carbon build-up or mechanical obstruction
- Compare accelerator pedal sensor signals and throttle position using the scan tool
- Perform an actuator test (commanded open/close) and observe target vs actual throttle angle
Signal parameters
- Battery/ignition supply voltage to throttle body (V)
- Actual throttle angle/position (%) or degrees
- Target throttle angle/position commanded by ECU
- Throttle actuator motor current (A) or motor drive feedback if available
- Accelerator Pedal Position Sensor 1 and 2 voltages/percent
- CAN/serial communication status between throttle module and ECU (if applicable)
Diagnostic algorithm
- Connect a full-function diagnostic scanner. Record the DTC, freeze frame and any related codes.
- Verify battery and charging system condition. Recharge or replace a weak battery before further testing.
- Visually inspect wiring and connectors at the throttle body and ECU. Repair any damaged wires or poor connections.
- With ignition on, monitor pedal position sensors and throttle position (target vs actual) while gently actuating the pedal. Look for inconsistencies or no movement.
- Command the throttle actuator using the scan tool (actuator test). Observe actual throttle movement and listen for unusual noises. If it fails to follow commands or binds, remove the throttle body for inspection.
- Remove and inspect the throttle body for carbon buildup, sticking plates, or debris. Clean using manufacturer-approved throttle body cleaner if mechanical sticking is present.
- After cleaning, repeat actuator/scan tests. If the throttle now moves correctly, perform the recommended throttle adaptation/relearn procedure per manufacturer instructions.
- If actuator still fails or current draw is abnormal, replace the throttle body assembly (or throttle module) and repeat adaptation/relearn.
- If replacement does not clear the issue, inspect/repair wiring harness power and ground feeds and re-check ECU communication. Consider ECU or throttle control module fault if wiring is confirmed good.
- Clear codes and road-test. Verify no recurrence and that adaptation values are within spec.
Likely causes
- Throttle body is dirty/sticking (carbon deposits) restricting motor recovery
- Intermittent wiring/connector fault at the throttle body (corrosion, broken wire)
- Throttle actuator motor failure or internal throttle module electronics fault
- Low system voltage during recovery (weak battery, bad alternator output, poor ground)
- Incorrect or out-of-range pedal position sensor input causing control mismatch
Fault status
Status
Throttle actuator did not complete the commanded recovery/movement. MIL set. Engine may run in reduced power mode until fault is resolved.
Repair difficulty: Medium
Diagnostic time: 1-3 hours
Similar codes
Repair manuals
Manual library for CHEVROLET
456
Browse 456 CHEVROLET manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.
CHEVROLET
-
CHEVROLET: 2020
-
Camaro
- LS, Automatic Trans
- LS, Standard Trans
- LT, 2D Convertible, 2.0L Eng VIN X, Automatic Trans
- LT, 2D Convertible, 2.0L Eng VIN X, Standard Trans
- LT, 2D Convertible, 3.6L Eng VIN S, Automatic Trans
- LT, 2D Convertible, 3.6L Eng VIN S, Standard Trans
- LT, 2D Coupe, 2.0L Eng VIN X, Automatic Trans
- LT, 2D Coupe, 2.0L Eng VIN X, Standard Trans
- LT, 2D Coupe, 3.6L Eng VIN S, Automatic Trans
- LT, 2D Coupe, 3.6L Eng VIN S, Standard Trans
- LT1, 2D Convertible, Automatic Trans
- LT1, 2D Convertible, Standard Trans
- LT1, 2D Coupe, Automatic Trans
- LT1, 2D Coupe, Standard Trans
- SS, 2D Convertible, Automatic Trans
- SS, 2D Convertible, Standard Trans
- SS, 2D Coupe, Automatic Trans
- SS, 2D Coupe, Standard Trans
- ZL1, 2D Convertible, Automatic Trans
- ZL1, 2D Convertible, Standard Trans
- ZL1, 2D Coupe, Automatic Trans
- ZL1, 2D Coupe, Standard Trans
-
Colorado
- 2020 Colorado Base
- LT, 4D Pickup Crew Cab, 2.5L Eng VIN A · 2.5L Eng VIN A2020: Colorado LT
- LT, 4D Pickup Crew Cab, 2.8L Eng VIN 1, 4WD
- LT, 4D Pickup Crew Cab, 2.8L Eng VIN 1, RWD
- LT, 4D Pickup Crew Cab, 3.6L Eng VIN N, 4WD
- LT, 4D Pickup Crew Cab, 3.6L Eng VIN N, RWD
- LT, 4D Pickup Extra Cab, 2.5L Eng VIN A, 4WD
- LT, 4D Pickup Extra Cab, 2.5L Eng VIN A, RWD
- LT, 4D Pickup Extra Cab, 3.6L Eng VIN N, 4WD
- LT, 4D Pickup Extra Cab, 3.6L Eng VIN N, RWD
- WT, 4D Pickup Crew Cab, 2.5L Eng VIN A · 2.5L Eng VIN A2020: Colorado WT
- WT, 4D Pickup Crew Cab, 2.8L Eng VIN 1, 4WD
- WT, 4D Pickup Crew Cab, 2.8L Eng VIN 1, RWD
- WT, 4D Pickup Crew Cab, 3.6L Eng VIN N, 4WD
- WT, 4D Pickup Crew Cab, 3.6L Eng VIN N, RWD
- WT, 4D Pickup Extra Cab, 2.5L Eng VIN A, 4WD
- WT, 4D Pickup Extra Cab, 2.5L Eng VIN A, RWD
- WT, 4D Pickup Extra Cab, 2.8L Eng VIN 1 · 2.8L Eng VIN 12020: Colorado WT
- WT, 4D Pickup Extra Cab, 3.6L Eng VIN N, 4WD
- WT, 4D Pickup Extra Cab, 3.6L Eng VIN N, RWD
- Z71, 4D Pickup Crew Cab, 2.8L Eng VIN 1 · 2.8L Eng VIN 12020: Colorado Z71
- Z71, 4D Pickup Crew Cab, 3.6L Eng VIN N, 4WD
- Z71, 4D Pickup Crew Cab, 3.6L Eng VIN N, RWD
- Z71, 4D Pickup Extra Cab
- ZR2, 4D Pickup Crew Cab, 2.8L Eng VIN 1 · 2.8L Eng VIN 12020: Colorado ZR2
- ZR2, 4D Pickup Crew Cab, 3.6L Eng VIN N · 3.6L Eng VIN N2020: Colorado ZR2
- ZR2, 4D Pickup Extra Cab, 2.8L Eng VIN 1 · 2.8L Eng VIN 12020: Colorado ZR2
- ZR2, 4D Pickup Extra Cab, 3.6L Eng VIN N · 3.6L Eng VIN N2020: Colorado ZR2
-
Corvette
-
Express 2500
- Base, Van Cargo, 2.8L Eng VIN 1 · 2.8L Eng VIN 12020: Express 2500 Base
- Base, Van Cargo, 4.3L Eng VIN P, Gas/Ethanol
- Base, Van Cargo, 4.3L Eng VIN P, Gas
- Base, Van Cargo, 6.0L Eng VIN B, Gas/Ethanol/CNG
- Base, Van Cargo, 6.0L Eng VIN B, Gas/Ethanol
- Base, Van Cargo, 6.0L Eng VIN G · 6.0L Eng VIN G2020: Express 2500 Base
- Base, Van Cargo Extended, 2.8L Eng VIN 1 · 2.8L Eng VIN 12020: Express 2500 Base
- Base, Van Cargo Extended, 4.3L Eng VIN P, Gas/Ethanol
- Base, Van Cargo Extended, 4.3L Eng VIN P, Gas
- Base, Van Cargo Extended, 6.0L Eng VIN B, Gas/Ethanol/CNG
- Base, Van Cargo Extended, 6.0L Eng VIN B, Gas/Ethanol
- Base, Van Cargo Extended, 6.0L Eng VIN G · 6.0L Eng VIN G2020: Express 2500 Base
- LS, 2.8L Eng VIN 1 · 2.8L Eng VIN 12020: Express 2500 LS
- LS, 4.3L Eng VIN P, Gas/Ethanol
- LS, 4.3L Eng VIN P, Gas
- LS, 6.0L Eng VIN B, Gas/Ethanol/CNG
- LS, 6.0L Eng VIN B, Gas/Ethanol
- LS, 6.0L Eng VIN G · 6.0L Eng VIN G2020: Express 2500 LS
- LT, 2.8L Eng VIN 1 · 2.8L Eng VIN 12020: Express 2500 LT
- LT, 4.3L Eng VIN P, Gas/Ethanol
- LT, 4.3L Eng VIN P, Gas
- LT, 6.0L Eng VIN B, Gas/Ethanol/CNG
- LT, 6.0L Eng VIN B, Gas/Ethanol
- LT, 6.0L Eng VIN G · 6.0L Eng VIN G2020: Express 2500 LT
-
Express 3500
- Base, Cutaway, 4.3L Eng VIN P, Gas/Ethanol
- Base, Cutaway, 4.3L Eng VIN P, Gas
- Base, Cutaway, 6.0L Eng VIN B, Gas/Ethanol/CNG
- Base, Cutaway, 6.0L Eng VIN B, Gas
- Base, Cutaway, 6.0L Eng VIN G · 6.0L Eng VIN G2020: Express 3500 Base
- Base, Van Cargo, 2.8L Eng VIN 1 · 2.8L Eng VIN 12020: Express 3500 Base
- Base, Van Cargo, 4.3L Eng VIN P, Gas/Ethanol
- Base, Van Cargo, 4.3L Eng VIN P, Gas
- Base, Van Cargo, 6.0L Eng VIN B, Gas/Ethanol/CNG
- Base, Van Cargo, 6.0L Eng VIN B, Gas/Ethanol
- Base, Van Cargo, 6.0L Eng VIN G · 6.0L Eng VIN G2020: Express 3500 Base
- Base, Van Cargo Extended, 2.8L Eng VIN 1 · 2.8L Eng VIN 12020: Express 3500 Base
- Base, Van Cargo Extended, 4.3L Eng VIN P, Gas/Ethanol
- Base, Van Cargo Extended, 4.3L Eng VIN P, Gas
- Base, Van Cargo Extended, 6.0L Eng VIN B, Gas/Ethanol/CNG
- Base, Van Cargo Extended, 6.0L Eng VIN B, Gas/Ethanol
- Base, Van Cargo Extended, 6.0L Eng VIN G · 6.0L Eng VIN G2020: Express 3500 Base
- LS, Van Passenger, 2.8L Eng VIN 1 · 2.8L Eng VIN 12020: Express 3500 LS
- LS, Van Passenger, 4.3L Eng VIN P, Gas/Ethanol
- LS, Van Passenger, 4.3L Eng VIN P, Gas
- LS, Van Passenger, 6.0L Eng VIN B, Gas/Ethanol/CNG
- LS, Van Passenger, 6.0L Eng VIN B, Gas/Ethanol
- LS, Van Passenger, 6.0L Eng VIN G · 6.0L Eng VIN G2020: Express 3500 LS
- LS, Van Passenger Extended, 2.8L Eng VIN 1 · 2.8L Eng VIN 12020: Express 3500 LS
- LS, Van Passenger Extended, 4.3L Eng VIN P, Gas/Ethanol
- LS, Van Passenger Extended, 4.3L Eng VIN P, Gas
- LS, Van Passenger Extended, 6.0L Eng VIN B, Gas/Ethanol/CNG
- LS, Van Passenger Extended, 6.0L Eng VIN B, Gas/Ethanol
- LS, Van Passenger Extended, 6.0L Eng VIN G · 6.0L Eng VIN G2020: Express 3500 LS
- LT, Van Passenger, 2.8L Eng VIN 1 · 2.8L Eng VIN 12020: Express 3500 LT
- LT, Van Passenger, 4.3L Eng VIN P, Gas/Ethanol
- LT, Van Passenger, 4.3L Eng VIN P, Gas
- LT, Van Passenger, 6.0L Eng VIN B, Gas/Ethanol/CNG
- LT, Van Passenger, 6.0L Eng VIN B, Gas/Ethanol
- LT, Van Passenger, 6.0L Eng VIN G · 6.0L Eng VIN G2020: Express 3500 LT
- LT, Van Passenger Extended, 2.8L Eng VIN 1 · 2.8L Eng VIN 12020: Express 3500 LT
- LT, Van Passenger Extended, 4.3L Eng VIN P, Gas/Ethanol
- LT, Van Passenger Extended, 4.3L Eng VIN P, Gas
- LT, Van Passenger Extended, 6.0L Eng VIN B, Gas/Ethanol/CNG
- LT, Van Passenger Extended, 6.0L Eng VIN B, Gas/Ethanol
- LT, Van Passenger Extended, 6.0L Eng VIN G · 6.0L Eng VIN G2020: Express 3500 LT
-
Silverado 1500
- Custom, 4D Pickup Crew Cab, 2.7L Eng VIN K, 4WD
- Custom, 4D Pickup Crew Cab, 2.7L Eng VIN K, RWD
- Custom, 4D Pickup Crew Cab, 4.3L Eng VIN H, 4WD
- Custom, 4D Pickup Crew Cab, 4.3L Eng VIN H, RWD
- Custom, 4D Pickup Crew Cab, 5.3L Eng VIN F, 4WD
- Custom, 4D Pickup Crew Cab, 5.3L Eng VIN F, RWD
- Custom, 4D Pickup Extra Cab, 2.7L Eng VIN K, 4WD
- Custom, 4D Pickup Extra Cab, 2.7L Eng VIN K, RWD
- Custom, 4D Pickup Extra Cab, 4.3L Eng VIN H, 4WD
- Custom, 4D Pickup Extra Cab, 4.3L Eng VIN H, RWD
- Custom, 4D Pickup Extra Cab, 5.3L Eng VIN F, 4WD
- Custom, 4D Pickup Extra Cab, 5.3L Eng VIN F, RWD
- Custom Trail Boss, 4D Pickup Crew Cab, 4.3L Eng VIN H · 4.3L Eng VIN H2020: Silverado 1500 Custom Trail Boss
- Custom Trail Boss, 4D Pickup Crew Cab, 5.3L Eng VIN F · 5.3L Eng VIN F2020: Silverado 1500 Custom Trail Boss
- Custom Trail Boss, 4D Pickup Crew Cab, 6.2L Eng VIN L · 6.2L Eng VIN L2020: Silverado 1500 Custom Trail Boss
- Custom Trail Boss, 4D Pickup Extra Cab, 4.3L Eng VIN H · 4.3L Eng VIN H2020: Silverado 1500 Custom Trail Boss
- Custom Trail Boss, 4D Pickup Extra Cab, 5.3L Eng VIN F · 5.3L Eng VIN F2020: Silverado 1500 Custom Trail Boss
- Custom Trail Boss, 4D Pickup Extra Cab, 6.2L Eng VIN L · 6.2L Eng VIN L2020: Silverado 1500 Custom Trail Boss
- High Country, 3.0L Eng VIN T, 4WD
- High Country, 3.0L Eng VIN T, RWD
- High Country, 5.3L Eng VIN D, 4WD
- High Country, 5.3L Eng VIN D, RWD
- High Country, 6.2L Eng VIN L · 6.2L Eng VIN L2020: Silverado 1500 High Country
- LT, 4D Pickup Crew Cab, 2.7L Eng VIN K, 4WD
- LT, 4D Pickup Crew Cab, 2.7L Eng VIN K, RWD
- LT, 4D Pickup Crew Cab, 3.0L Eng VIN T, 4WD
- LT, 4D Pickup Crew Cab, 3.0L Eng VIN T, RWD
- LT, 4D Pickup Crew Cab, 5.3L Eng VIN D, 4WD
- LT, 4D Pickup Crew Cab, 5.3L Eng VIN D, RWD
- LT, 4D Pickup Extra Cab, 2.7L Eng VIN K, 4WD
- LT, 4D Pickup Extra Cab, 2.7L Eng VIN K, RWD
- LT, 4D Pickup Extra Cab, 3.0L Eng VIN T, 4WD
- LT, 4D Pickup Extra Cab, 3.0L Eng VIN T, RWD
- LT, 4D Pickup Extra Cab, 5.3L Eng VIN D, 4WD
- LT, 4D Pickup Extra Cab, 5.3L Eng VIN D, RWD
- LT Trail Boss, 5.3L Eng VIN D · 5.3L Eng VIN D2020: Silverado 1500 LT Trail Boss
- LT Trail Boss, 6.2L Eng VIN L · 6.2L Eng VIN L2020: Silverado 1500 LT Trail Boss
- LTZ, 4D Pickup Crew Cab, 3.0L Eng VIN T, 4WD
- LTZ, 4D Pickup Crew Cab, 3.0L Eng VIN T, RWD
- LTZ, 4D Pickup Crew Cab, 5.3L Eng VIN D, 4WD
- LTZ, 4D Pickup Crew Cab, 5.3L Eng VIN D, RWD
- LTZ, 4D Pickup Crew Cab, 6.2L Eng VIN L · 6.2L Eng VIN L2020: Silverado 1500 LTZ
- LTZ, 4D Pickup Extra Cab, 3.0L Eng VIN T, 4WD
- LTZ, 4D Pickup Extra Cab, 3.0L Eng VIN T, RWD
- LTZ, 4D Pickup Extra Cab, 5.3L Eng VIN D, 4WD
- LTZ, 4D Pickup Extra Cab, 5.3L Eng VIN D, RWD
- LTZ, 4D Pickup Extra Cab, 6.2L Eng VIN L · 6.2L Eng VIN L2020: Silverado 1500 LTZ
- RST, 4D Pickup Crew Cab, 2.7L Eng VIN K, 4WD
- RST, 4D Pickup Crew Cab, 2.7L Eng VIN K, RWD
- RST, 4D Pickup Crew Cab, 3.0L Eng VIN T, 4WD
- RST, 4D Pickup Crew Cab, 3.0L Eng VIN T, RWD
- RST, 4D Pickup Crew Cab, 5.3L Eng VIN D, 4WD
- RST, 4D Pickup Crew Cab, 5.3L Eng VIN D, RWD
- RST, 4D Pickup Crew Cab, 6.2L Eng VIN L · 6.2L Eng VIN L2020: Silverado 1500 RST
- RST, 4D Pickup Extra Cab, 2.7L Eng VIN K, 4WD
- RST, 4D Pickup Extra Cab, 2.7L Eng VIN K, RWD
- RST, 4D Pickup Extra Cab, 3.0L Eng VIN T, 4WD
- RST, 4D Pickup Extra Cab, 3.0L Eng VIN T, RWD
- RST, 4D Pickup Extra Cab, 5.3L Eng VIN D, 4WD
- RST, 4D Pickup Extra Cab, 5.3L Eng VIN D, RWD
- RST, 4D Pickup Extra Cab, 6.2L Eng VIN L · 6.2L Eng VIN L2020: Silverado 1500 RST
- SSV, 4WD, Gas
- SSV, 4WD, Gas/Ethanol
- SSV, RWD, Gas
- SSV, RWD, Gas/Ethanol
- WT, 2D Pickup, 4.3L Eng VIN H, 4WD, Gas/Ethanol
- WT, 2D Pickup, 4.3L Eng VIN H, 4WD, Gas
- WT, 2D Pickup, 4.3L Eng VIN H, RWD, Gas/Ethanol
- WT, 2D Pickup, 4.3L Eng VIN H, RWD, Gas
- WT, 2D Pickup, 5.3L Eng VIN F, 4WD, Gas/Ethanol
- WT, 2D Pickup, 5.3L Eng VIN F, 4WD, Gas
- WT, 2D Pickup, 5.3L Eng VIN F, RWD, Gas/Ethanol
- WT, 2D Pickup, 5.3L Eng VIN F, RWD, Gas
- WT, 4D Pickup Crew Cab, 2.7L Eng VIN K, 4WD
- WT, 4D Pickup Crew Cab, 2.7L Eng VIN K, RWD
- WT, 4D Pickup Crew Cab, 4.3L Eng VIN H, 4WD, Gas/Ethanol
- WT, 4D Pickup Crew Cab, 4.3L Eng VIN H, 4WD, Gas
- WT, 4D Pickup Crew Cab, 4.3L Eng VIN H, RWD, Gas/Ethanol
- WT, 4D Pickup Crew Cab, 4.3L Eng VIN H, RWD, Gas
- WT, 4D Pickup Crew Cab, 5.3L Eng VIN F, 4WD, Gas/Ethanol
- WT, 4D Pickup Crew Cab, 5.3L Eng VIN F, 4WD, Gas
- WT, 4D Pickup Crew Cab, 5.3L Eng VIN F, RWD, Gas/Ethanol
- WT, 4D Pickup Crew Cab, 5.3L Eng VIN F, RWD, Gas
- WT, 4D Pickup Extra Cab, 2.7L Eng VIN K, 4WD
- WT, 4D Pickup Extra Cab, 2.7L Eng VIN K, RWD
- WT, 4D Pickup Extra Cab, 4.3L Eng VIN H, 4WD, Gas/Ethanol
- WT, 4D Pickup Extra Cab, 4.3L Eng VIN H, 4WD, Gas
- WT, 4D Pickup Extra Cab, 4.3L Eng VIN H, RWD, Gas/Ethanol
- WT, 4D Pickup Extra Cab, 4.3L Eng VIN H, RWD, Gas
- WT, 4D Pickup Extra Cab, 5.3L Eng VIN F, 4WD, Gas/Ethanol
- WT, 4D Pickup Extra Cab, 5.3L Eng VIN F, 4WD, Gas
- WT, 4D Pickup Extra Cab, 5.3L Eng VIN F, RWD, Gas/Ethanol
- WT, 4D Pickup Extra Cab, 5.3L Eng VIN F, RWD, Gas
-
Silverado 2500 HD
- Custom, 4D Pickup Crew Cab, 4WD
- Custom, 4D Pickup Crew Cab, RWD
- Custom, 4D Pickup Extra Cab, 4WD
- Custom, 4D Pickup Extra Cab, RWD
- High Country, 6.6L Eng VIN 7 · 6.6L Eng VIN 72020: Silverado 2500 HD High Country
- High Country, 6.6L Eng VIN Y · 6.6L Eng VIN Y2020: Silverado 2500 HD High Country
- LT, 2D Pickup, 6.6L Eng VIN 7, 4WD, Automatic T/Case Control
- LT, 2D Pickup, 6.6L Eng VIN 7, 4WD, Part Time T/Case Control
- LT, 2D Pickup, 6.6L Eng VIN 7, RWD
- LT, 2D Pickup, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGM
- LT, 2D Pickup, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGU
- LT, 2D Pickup, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGM
- LT, 2D Pickup, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGU
- LT, 2D Pickup, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM
- LT, 2D Pickup, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU
- LT, 4D Pickup Crew Cab, 6.6L Eng VIN 7, 4WD, Automatic T/Case Control
- LT, 4D Pickup Crew Cab, 6.6L Eng VIN 7, 4WD, Part Time T/Case Control
- LT, 4D Pickup Crew Cab, 6.6L Eng VIN 7, RWD
- LT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGM
- LT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGU
- LT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGM
- LT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGU
- LT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM
- LT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU
- LT, 4D Pickup Extra Cab, 6.6L Eng VIN 7, 4WD, Automatic T/Case Control
- LT, 4D Pickup Extra Cab, 6.6L Eng VIN 7, 4WD, Part Time T/Case Control
- LT, 4D Pickup Extra Cab, 6.6L Eng VIN 7, RWD
- LT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGM
- LT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGU
- LT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGM
- LT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGU
- LT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM
- LT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU
- LTZ, 4D Pickup Crew Cab, 6.6L Eng VIN 7, 4WD
- LTZ, 4D Pickup Crew Cab, 6.6L Eng VIN 7, RWD
- LTZ, 4D Pickup Crew Cab, 6.6L Eng VIN Y, 4WD
- LTZ, 4D Pickup Crew Cab, 6.6L Eng VIN Y, RWD
- LTZ, 4D Pickup Extra Cab, 6.6L Eng VIN 7, 4WD
- LTZ, 4D Pickup Extra Cab, 6.6L Eng VIN 7, RWD
- LTZ, 4D Pickup Extra Cab, 6.6L Eng VIN Y, 4WD
- LTZ, 4D Pickup Extra Cab, 6.6L Eng VIN Y, RWD
- WT, 2D Pickup, 6.6L Eng VIN 7, 4WD
- WT, 2D Pickup, 6.6L Eng VIN 7, RWD
- WT, 2D Pickup, 6.6L Eng VIN Y, 4WD, Trans Mfr CD 10L1000/MGM
- WT, 2D Pickup, 6.6L Eng VIN Y, 4WD, Trans Mfr CD 10L1000/MGU
- WT, 2D Pickup, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM
- WT, 2D Pickup, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU
- WT, 4D Pickup Crew Cab, 6.6L Eng VIN 7, 4WD
- WT, 4D Pickup Crew Cab, 6.6L Eng VIN 7, RWD
- WT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, 4WD, Trans Mfr CD 10L1000/MGM
- WT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, 4WD, Trans Mfr CD 10L1000/MGU
- WT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM
- WT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU
- WT, 4D Pickup Extra Cab, 6.6L Eng VIN 7, 4WD
- WT, 4D Pickup Extra Cab, 6.6L Eng VIN 7, RWD
- WT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, 4WD, Trans Mfr CD 10L1000/MGM
- WT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, 4WD, Trans Mfr CD 10L1000/MGU
- WT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM
- WT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU
-
Silverado 3500 HD
- High Country, 6.6L Eng VIN 7 · 6.6L Eng VIN 72020: Silverado 3500 HD High Country
- High Country, 6.6L Eng VIN Y · 6.6L Eng VIN Y2020: Silverado 3500 HD High Country
- LT, 2D Cab Chassis, 6.6L Eng VIN 7, 4WD, Automatic T/Case Control
- LT, 2D Cab Chassis, 6.6L Eng VIN 7, 4WD, Part Time T/Case Control
- LT, 2D Cab Chassis, 6.6L Eng VIN 7, RWD
- LT, 2D Cab Chassis, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGM
- LT, 2D Cab Chassis, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGU
- LT, 2D Cab Chassis, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGM
- LT, 2D Cab Chassis, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGU
- LT, 2D Cab Chassis, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM
- LT, 2D Cab Chassis, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU
- LT, 2D Pickup, 6.6L Eng VIN 7, 4WD, Automatic T/Case Control
- LT, 2D Pickup, 6.6L Eng VIN 7, 4WD, Part Time T/Case Control
- LT, 2D Pickup, 6.6L Eng VIN 7, RWD
- LT, 2D Pickup, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGM
- LT, 2D Pickup, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGU
- LT, 2D Pickup, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGM
- LT, 2D Pickup, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGU
- LT, 2D Pickup, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM
- LT, 2D Pickup, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU
- LT, 4D Cab Chassis, 6.6L Eng VIN 7, 4WD, Automatic T/Case Control
- LT, 4D Cab Chassis, 6.6L Eng VIN 7, 4WD, Part Time T/Case Control
- LT, 4D Cab Chassis, 6.6L Eng VIN 7, RWD
- LT, 4D Cab Chassis, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGM
- LT, 4D Cab Chassis, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGU
- LT, 4D Cab Chassis, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGM
- LT, 4D Cab Chassis, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGU
- LT, 4D Cab Chassis, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM
- LT, 4D Cab Chassis, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU
- LT, 4D Pickup Crew Cab, 6.6L Eng VIN 7, 4WD, Automatic T/Case Control
- LT, 4D Pickup Crew Cab, 6.6L Eng VIN 7, 4WD, Part Time T/Case Control
- LT, 4D Pickup Crew Cab, 6.6L Eng VIN 7, RWD
- LT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGM
- LT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGU
- LT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGM
- LT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGU
- LT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM
- LT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU
- LT, 4D Pickup Extra Cab, 6.6L Eng VIN 7, 4WD, Automatic T/Case Control
- LT, 4D Pickup Extra Cab, 6.6L Eng VIN 7, 4WD, Part Time T/Case Control
- LT, 4D Pickup Extra Cab, 6.6L Eng VIN 7, RWD
- LT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGM
- LT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGU
- LT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGM
- LT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGU
- LT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM
- LT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU
- LTZ, 6.6L Eng VIN 7, 4WD
- LTZ, 6.6L Eng VIN 7, RWD
- LTZ, 6.6L Eng VIN Y, 4WD
- LTZ, 6.6L Eng VIN Y, RWD
- WT, 2D Cab Chassis, 6.6L Eng VIN 7, 4WD, Automatic T/Case Control
- WT, 2D Cab Chassis, 6.6L Eng VIN 7, 4WD, Part Time T/Case Control
- WT, 2D Cab Chassis, 6.6L Eng VIN 7, RWD
- WT, 2D Cab Chassis, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGM
- WT, 2D Cab Chassis, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGU
- WT, 2D Cab Chassis, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGM
- WT, 2D Cab Chassis, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGU
- WT, 2D Cab Chassis, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM
- WT, 2D Cab Chassis, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU
- WT, 2D Pickup, 6.6L Eng VIN 7, 4WD
- WT, 2D Pickup, 6.6L Eng VIN 7, RWD
- WT, 2D Pickup, 6.6L Eng VIN Y, 4WD, Trans Mfr CD 10L1000/MGM
- WT, 2D Pickup, 6.6L Eng VIN Y, 4WD, Trans Mfr CD 10L1000/MGU
- WT, 2D Pickup, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM
- WT, 2D Pickup, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU
- WT, 4D Cab Chassis, 6.6L Eng VIN 7, 4WD, Automatic T/Case Control
- WT, 4D Cab Chassis, 6.6L Eng VIN 7, 4WD, Part Time T/Case Control
- WT, 4D Cab Chassis, 6.6L Eng VIN 7, RWD
- WT, 4D Cab Chassis, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGM
- WT, 4D Cab Chassis, 6.6L Eng VIN Y, 4WD, Automatic T/Case Control, Trans Mfr CD 10L1000/MGU
- WT, 4D Cab Chassis, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGM
- WT, 4D Cab Chassis, 6.6L Eng VIN Y, 4WD, Part Time T/Case Control, Trans Mfr CD 10L1000/MGU
- WT, 4D Cab Chassis, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM
- WT, 4D Cab Chassis, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU
- WT, 4D Pickup Crew Cab, 6.6L Eng VIN 7, 4WD
- WT, 4D Pickup Crew Cab, 6.6L Eng VIN 7, RWD
- WT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, 4WD, Trans Mfr CD 10L1000/MGM
- WT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, 4WD, Trans Mfr CD 10L1000/MGU
- WT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM
- WT, 4D Pickup Crew Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU
- WT, 4D Pickup Extra Cab, 6.6L Eng VIN 7, 4WD
- WT, 4D Pickup Extra Cab, 6.6L Eng VIN 7, RWD
- WT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, 4WD, Trans Mfr CD 10L1000/MGM
- WT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, 4WD, Trans Mfr CD 10L1000/MGU
- WT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGM
- WT, 4D Pickup Extra Cab, 6.6L Eng VIN Y, RWD, Trans Mfr CD 10L1000/MGU
-
Suburban
- FL, 4WD, Gas
- FL, 4WD, Gas/Ethanol
- FL, RWD, Gas
- FL, RWD, Gas/Ethanol
- LS, 4WD, Gas
- LS, 4WD, Gas/Ethanol
- LS, RWD, Gas
- LS, RWD, Gas/Ethanol
- LT, 4WD, Gas
- LT, 4WD, Gas/Ethanol
- LT, RWD, Gas
- LT, RWD, Gas/Ethanol
- Premier, 5.3L Eng VIN C, 4WD, Gas/Ethanol
- Premier, 5.3L Eng VIN C, 4WD, Gas
- Premier, 5.3L Eng VIN C, RWD, Gas/Ethanol
- Premier, 5.3L Eng VIN C, RWD, Gas
- Premier, 6.2L Eng VIN J, 4WD
- Premier, 6.2L Eng VIN J, RWD
-
Tahoe
- FL, 4WD, Gas
- FL, 4WD, Gas/Ethanol
- FL, RWD, Gas
- FL, RWD, Gas/Ethanol
- LS, 4WD, Gas
- LS, 4WD, Gas/Ethanol
- LS, RWD, Gas
- LS, RWD, Gas/Ethanol
- LT, 4WD, Gas
- LT, 4WD, Gas/Ethanol
- LT, RWD, Gas
- LT, RWD, Gas/Ethanol
- PPV, 4WD, Gas
- PPV, 4WD, Gas/Ethanol
- PPV, RWD, Gas
- PPV, RWD, Gas/Ethanol
- Premier, 5.3L Eng VIN C, 4WD, Gas/Ethanol
- Premier, 5.3L Eng VIN C, 4WD, Gas
- Premier, 5.3L Eng VIN C, RWD, Gas/Ethanol
- Premier, 5.3L Eng VIN C, RWD, Gas
- Premier, 6.2L Eng VIN J, 4WD
- Premier, 6.2L Eng VIN J, RWD
- SSV, Gas
- SSV, Gas/Ethanol
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Code
P1683
CHRYSLER
P — Powertrain
Speed Control Power Relay Or Speed Control 12 Volt Driver Circuit Open Or Shorted
AI status
Completed
Completed
100%
Causes
- Carbon build-up or mechanical binding in the throttle body preventing free movement
- Faulty throttle actuator motor or internal throttle body electronics
- Damaged wiring, poor connector contact or corroded terminals to throttle body
- Low battery voltage or poor ground affecting actuator operation
- Faulty accelerator pedal position sensor(s) or signal mismatch
- ECU or throttle control module software/firmware error or need for adaptation/relearn
Symptoms
- MIL (Malfunction Indicator Lamp) illuminated
- Reduced engine power / limp-mode activation
- Erratic or high/low idle
- Poor throttle response, hesitation or inability to accelerate normally
- Possible trouble starting if throttle cannot achieve required position
What to check
- Read stored/active DTCs and freeze frame data with an appropriate scan tool
- Check battery voltage and charging system at rest and under cranking (should be >12.0–12.5 V nominal)
- Visually inspect throttle body connector and wiring for damage, corrosion, or loose pins
- Inspect throttle body for carbon build-up or mechanical obstruction
- Compare accelerator pedal sensor signals and throttle position using the scan tool
- Perform an actuator test (commanded open/close) and observe target vs actual throttle angle
Signal parameters
- Battery/ignition supply voltage to throttle body (V)
- Actual throttle angle/position (%) or degrees
- Target throttle angle/position commanded by ECU
- Throttle actuator motor current (A) or motor drive feedback if available
- Accelerator Pedal Position Sensor 1 and 2 voltages/percent
- CAN/serial communication status between throttle module and ECU (if applicable)
Diagnostic algorithm
- Connect a full-function diagnostic scanner. Record the DTC, freeze frame and any related codes.
- Verify battery and charging system condition. Recharge or replace a weak battery before further testing.
- Visually inspect wiring and connectors at the throttle body and ECU. Repair any damaged wires or poor connections.
- With ignition on, monitor pedal position sensors and throttle position (target vs actual) while gently actuating the pedal. Look for inconsistencies or no movement.
- Command the throttle actuator using the scan tool (actuator test). Observe actual throttle movement and listen for unusual noises. If it fails to follow commands or binds, remove the throttle body for inspection.
- Remove and inspect the throttle body for carbon buildup, sticking plates, or debris. Clean using manufacturer-approved throttle body cleaner if mechanical sticking is present.
- After cleaning, repeat actuator/scan tests. If the throttle now moves correctly, perform the recommended throttle adaptation/relearn procedure per manufacturer instructions.
- If actuator still fails or current draw is abnormal, replace the throttle body assembly (or throttle module) and repeat adaptation/relearn.
- If replacement does not clear the issue, inspect/repair wiring harness power and ground feeds and re-check ECU communication. Consider ECU or throttle control module fault if wiring is confirmed good.
- Clear codes and road-test. Verify no recurrence and that adaptation values are within spec.
Likely causes
- Throttle body is dirty/sticking (carbon deposits) restricting motor recovery
- Intermittent wiring/connector fault at the throttle body (corrosion, broken wire)
- Throttle actuator motor failure or internal throttle module electronics fault
- Low system voltage during recovery (weak battery, bad alternator output, poor ground)
- Incorrect or out-of-range pedal position sensor input causing control mismatch
Fault status
Status
Throttle actuator did not complete the commanded recovery/movement. MIL set. Engine may run in reduced power mode until fault is resolved.
Repair difficulty: Medium
Diagnostic time: 1-3 hours
Similar codes
Repair manuals
Manual library for CHRYSLER
161
Browse 161 CHRYSLER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.
CHRYSLER
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CHRYSLER: 2023
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CHRYSLER: 2022
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Pacifica
- Hybrid Limited
- Hybrid Pinnacle
- Hybrid Touring L
- Limited, 4WD, Gas
- Limited, 4WD, Gas/Ethanol
- Limited, FWD, Gas
- Limited, FWD, Gas/Ethanol
- Pinnacle, 4WD, Gas
- Pinnacle, 4WD, Gas/Ethanol
- Pinnacle, FWD, Gas
- Pinnacle, FWD, Gas/Ethanol
- Touring, 4WD, Gas
- Touring, 4WD, Gas/Ethanol
- Touring, FWD, Gas
- Touring, FWD, Gas/Ethanol
- Touring L, 4WD, Gas
- Touring L, 4WD, Gas/Ethanol
- Touring L, FWD, Gas
- Touring L, FWD, Gas/Ethanol
-
Voyager
-
CHRYSLER: 2021
-
Pacifica
- Hybrid Limited
- Hybrid Pinnacle
- Hybrid Touring
- Hybrid Touring L
- Limited, 4WD, Gas
- Limited, 4WD, Gas/Ethanol
- Limited, FWD, Gas
- Limited, FWD, Gas/Ethanol
- Pinnacle, 4WD, Gas
- Pinnacle, 4WD, Gas/Ethanol
- Pinnacle, FWD, Gas
- Pinnacle, FWD, Gas/Ethanol
- Touring, 4WD, Gas
- Touring, 4WD, Gas/Ethanol
- Touring, FWD, Gas
- Touring, FWD, Gas/Ethanol
- Touring L, 4WD, Gas
- Touring L, 4WD, Gas/Ethanol
- Touring L, FWD, Gas
- Touring L, FWD, Gas/Ethanol
-
CHRYSLER: 2020
-
300
- C
- Limited, 4WD, Gas
- Limited, 4WD, Gas/Ethanol
- Limited, RWD, Gas
- Limited, RWD, Gas/Ethanol
- S, 3.6L Eng VIN G, 4WD, Gas/Ethanol
- S, 3.6L Eng VIN G, 4WD, Gas
- S, 3.6L Eng VIN G, RWD, Gas/Ethanol
- S, 3.6L Eng VIN G, RWD, Gas
- S, 5.7L Eng VIN T · 5.7L Eng VIN T2020: 300 S
- Touring, 4WD, Gas
- Touring, 4WD, Gas/Ethanol
- Touring, RWD, Gas
- Touring, RWD, Gas/Ethanol
- Touring L, 4WD, Gas
- Touring L, 4WD, Gas/Ethanol
- Touring L, RWD, Gas
- Touring L, RWD, Gas/Ethanol
-
-
CHRYSLER: 2019
-
300
- C
- Limited, 4WD, Gas
- Limited, 4WD, Gas/Ethanol
- Limited, RWD, Gas
- Limited, RWD, Gas/Ethanol
- S, 3.6L Eng VIN G, 4WD, Gas/Ethanol
- S, 3.6L Eng VIN G, 4WD, Gas
- S, 3.6L Eng VIN G, RWD, Gas/Ethanol
- S, 3.6L Eng VIN G, RWD, Gas
- S, 5.7L Eng VIN T · 5.7L Eng VIN T2019: 300 S
- Touring, 4WD, Gas
- Touring, 4WD, Gas/Ethanol
- Touring, RWD, Gas
- Touring, RWD, Gas/Ethanol
- Touring L, 4WD, Gas
- Touring L, 4WD, Gas/Ethanol
- Touring L, RWD, Gas
- Touring L, RWD, Gas/Ethanol
-
Pacifica
-
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Code
P1683
DODGE
P — Powertrain
Speed Control Power Relay Or Speed Control 12 Volt Driver Circuit Open Or Shorted
AI status
Completed
Completed
100%
Causes
- Carbon build-up or mechanical binding in the throttle body preventing free movement
- Faulty throttle actuator motor or internal throttle body electronics
- Damaged wiring, poor connector contact or corroded terminals to throttle body
- Low battery voltage or poor ground affecting actuator operation
- Faulty accelerator pedal position sensor(s) or signal mismatch
- ECU or throttle control module software/firmware error or need for adaptation/relearn
Symptoms
- MIL (Malfunction Indicator Lamp) illuminated
- Reduced engine power / limp-mode activation
- Erratic or high/low idle
- Poor throttle response, hesitation or inability to accelerate normally
- Possible trouble starting if throttle cannot achieve required position
What to check
- Read stored/active DTCs and freeze frame data with an appropriate scan tool
- Check battery voltage and charging system at rest and under cranking (should be >12.0–12.5 V nominal)
- Visually inspect throttle body connector and wiring for damage, corrosion, or loose pins
- Inspect throttle body for carbon build-up or mechanical obstruction
- Compare accelerator pedal sensor signals and throttle position using the scan tool
- Perform an actuator test (commanded open/close) and observe target vs actual throttle angle
Signal parameters
- Battery/ignition supply voltage to throttle body (V)
- Actual throttle angle/position (%) or degrees
- Target throttle angle/position commanded by ECU
- Throttle actuator motor current (A) or motor drive feedback if available
- Accelerator Pedal Position Sensor 1 and 2 voltages/percent
- CAN/serial communication status between throttle module and ECU (if applicable)
Diagnostic algorithm
- Connect a full-function diagnostic scanner. Record the DTC, freeze frame and any related codes.
- Verify battery and charging system condition. Recharge or replace a weak battery before further testing.
- Visually inspect wiring and connectors at the throttle body and ECU. Repair any damaged wires or poor connections.
- With ignition on, monitor pedal position sensors and throttle position (target vs actual) while gently actuating the pedal. Look for inconsistencies or no movement.
- Command the throttle actuator using the scan tool (actuator test). Observe actual throttle movement and listen for unusual noises. If it fails to follow commands or binds, remove the throttle body for inspection.
- Remove and inspect the throttle body for carbon buildup, sticking plates, or debris. Clean using manufacturer-approved throttle body cleaner if mechanical sticking is present.
- After cleaning, repeat actuator/scan tests. If the throttle now moves correctly, perform the recommended throttle adaptation/relearn procedure per manufacturer instructions.
- If actuator still fails or current draw is abnormal, replace the throttle body assembly (or throttle module) and repeat adaptation/relearn.
- If replacement does not clear the issue, inspect/repair wiring harness power and ground feeds and re-check ECU communication. Consider ECU or throttle control module fault if wiring is confirmed good.
- Clear codes and road-test. Verify no recurrence and that adaptation values are within spec.
Likely causes
- Throttle body is dirty/sticking (carbon deposits) restricting motor recovery
- Intermittent wiring/connector fault at the throttle body (corrosion, broken wire)
- Throttle actuator motor failure or internal throttle module electronics fault
- Low system voltage during recovery (weak battery, bad alternator output, poor ground)
- Incorrect or out-of-range pedal position sensor input causing control mismatch
Fault status
Status
Throttle actuator did not complete the commanded recovery/movement. MIL set. Engine may run in reduced power mode until fault is resolved.
Repair difficulty: Medium
Diagnostic time: 1-3 hours
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Code
P1683
FIAT
P — Powertrain
Motorised throttle recovery fault
AI status
Completed
Completed
100%
Causes
- Carbon build-up or mechanical binding in the throttle body preventing free movement
- Faulty throttle actuator motor or internal throttle body electronics
- Damaged wiring, poor connector contact or corroded terminals to throttle body
- Low battery voltage or poor ground affecting actuator operation
- Faulty accelerator pedal position sensor(s) or signal mismatch
- ECU or throttle control module software/firmware error or need for adaptation/relearn
Symptoms
- MIL (Malfunction Indicator Lamp) illuminated
- Reduced engine power / limp-mode activation
- Erratic or high/low idle
- Poor throttle response, hesitation or inability to accelerate normally
- Possible trouble starting if throttle cannot achieve required position
What to check
- Read stored/active DTCs and freeze frame data with an appropriate scan tool
- Check battery voltage and charging system at rest and under cranking (should be >12.0–12.5 V nominal)
- Visually inspect throttle body connector and wiring for damage, corrosion, or loose pins
- Inspect throttle body for carbon build-up or mechanical obstruction
- Compare accelerator pedal sensor signals and throttle position using the scan tool
- Perform an actuator test (commanded open/close) and observe target vs actual throttle angle
Signal parameters
- Battery/ignition supply voltage to throttle body (V)
- Actual throttle angle/position (%) or degrees
- Target throttle angle/position commanded by ECU
- Throttle actuator motor current (A) or motor drive feedback if available
- Accelerator Pedal Position Sensor 1 and 2 voltages/percent
- CAN/serial communication status between throttle module and ECU (if applicable)
Diagnostic algorithm
- Connect a full-function diagnostic scanner. Record the DTC, freeze frame and any related codes.
- Verify battery and charging system condition. Recharge or replace a weak battery before further testing.
- Visually inspect wiring and connectors at the throttle body and ECU. Repair any damaged wires or poor connections.
- With ignition on, monitor pedal position sensors and throttle position (target vs actual) while gently actuating the pedal. Look for inconsistencies or no movement.
- Command the throttle actuator using the scan tool (actuator test). Observe actual throttle movement and listen for unusual noises. If it fails to follow commands or binds, remove the throttle body for inspection.
- Remove and inspect the throttle body for carbon buildup, sticking plates, or debris. Clean using manufacturer-approved throttle body cleaner if mechanical sticking is present.
- After cleaning, repeat actuator/scan tests. If the throttle now moves correctly, perform the recommended throttle adaptation/relearn procedure per manufacturer instructions.
- If actuator still fails or current draw is abnormal, replace the throttle body assembly (or throttle module) and repeat adaptation/relearn.
- If replacement does not clear the issue, inspect/repair wiring harness power and ground feeds and re-check ECU communication. Consider ECU or throttle control module fault if wiring is confirmed good.
- Clear codes and road-test. Verify no recurrence and that adaptation values are within spec.
Likely causes
- Throttle body is dirty/sticking (carbon deposits) restricting motor recovery
- Intermittent wiring/connector fault at the throttle body (corrosion, broken wire)
- Throttle actuator motor failure or internal throttle module electronics fault
- Low system voltage during recovery (weak battery, bad alternator output, poor ground)
- Incorrect or out-of-range pedal position sensor input causing control mismatch
Fault status
Status
Throttle actuator did not complete the commanded recovery/movement. MIL set. Engine may run in reduced power mode until fault is resolved.
Repair difficulty: Medium
Diagnostic time: 1-3 hours
Similar codes
Repair manuals
Manual library for FIAT
26
Browse 26 FIAT manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.
FIAT
-
FIAT: 2022
-
500X
-
-
FIAT: 2021
-
500X
-
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Code
P1683
GM
P — Powertrain
Driver 5 Line 3
AI status
Completed
Completed
100%
Causes
- Carbon build-up or mechanical binding in the throttle body preventing free movement
- Faulty throttle actuator motor or internal throttle body electronics
- Damaged wiring, poor connector contact or corroded terminals to throttle body
- Low battery voltage or poor ground affecting actuator operation
- Faulty accelerator pedal position sensor(s) or signal mismatch
- ECU or throttle control module software/firmware error or need for adaptation/relearn
Symptoms
- MIL (Malfunction Indicator Lamp) illuminated
- Reduced engine power / limp-mode activation
- Erratic or high/low idle
- Poor throttle response, hesitation or inability to accelerate normally
- Possible trouble starting if throttle cannot achieve required position
What to check
- Read stored/active DTCs and freeze frame data with an appropriate scan tool
- Check battery voltage and charging system at rest and under cranking (should be >12.0–12.5 V nominal)
- Visually inspect throttle body connector and wiring for damage, corrosion, or loose pins
- Inspect throttle body for carbon build-up or mechanical obstruction
- Compare accelerator pedal sensor signals and throttle position using the scan tool
- Perform an actuator test (commanded open/close) and observe target vs actual throttle angle
Signal parameters
- Battery/ignition supply voltage to throttle body (V)
- Actual throttle angle/position (%) or degrees
- Target throttle angle/position commanded by ECU
- Throttle actuator motor current (A) or motor drive feedback if available
- Accelerator Pedal Position Sensor 1 and 2 voltages/percent
- CAN/serial communication status between throttle module and ECU (if applicable)
Diagnostic algorithm
- Connect a full-function diagnostic scanner. Record the DTC, freeze frame and any related codes.
- Verify battery and charging system condition. Recharge or replace a weak battery before further testing.
- Visually inspect wiring and connectors at the throttle body and ECU. Repair any damaged wires or poor connections.
- With ignition on, monitor pedal position sensors and throttle position (target vs actual) while gently actuating the pedal. Look for inconsistencies or no movement.
- Command the throttle actuator using the scan tool (actuator test). Observe actual throttle movement and listen for unusual noises. If it fails to follow commands or binds, remove the throttle body for inspection.
- Remove and inspect the throttle body for carbon buildup, sticking plates, or debris. Clean using manufacturer-approved throttle body cleaner if mechanical sticking is present.
- After cleaning, repeat actuator/scan tests. If the throttle now moves correctly, perform the recommended throttle adaptation/relearn procedure per manufacturer instructions.
- If actuator still fails or current draw is abnormal, replace the throttle body assembly (or throttle module) and repeat adaptation/relearn.
- If replacement does not clear the issue, inspect/repair wiring harness power and ground feeds and re-check ECU communication. Consider ECU or throttle control module fault if wiring is confirmed good.
- Clear codes and road-test. Verify no recurrence and that adaptation values are within spec.
Likely causes
- Throttle body is dirty/sticking (carbon deposits) restricting motor recovery
- Intermittent wiring/connector fault at the throttle body (corrosion, broken wire)
- Throttle actuator motor failure or internal throttle module electronics fault
- Low system voltage during recovery (weak battery, bad alternator output, poor ground)
- Incorrect or out-of-range pedal position sensor input causing control mismatch
Fault status
Status
Throttle actuator did not complete the commanded recovery/movement. MIL set. Engine may run in reduced power mode until fault is resolved.
Repair difficulty: Medium
Diagnostic time: 1-3 hours
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Code
P1683
GMC
P — Powertrain
Driver 5 Line 3
AI status
Completed
Completed
100%
Causes
- Carbon build-up or mechanical binding in the throttle body preventing free movement
- Faulty throttle actuator motor or internal throttle body electronics
- Damaged wiring, poor connector contact or corroded terminals to throttle body
- Low battery voltage or poor ground affecting actuator operation
- Faulty accelerator pedal position sensor(s) or signal mismatch
- ECU or throttle control module software/firmware error or need for adaptation/relearn
Symptoms
- MIL (Malfunction Indicator Lamp) illuminated
- Reduced engine power / limp-mode activation
- Erratic or high/low idle
- Poor throttle response, hesitation or inability to accelerate normally
- Possible trouble starting if throttle cannot achieve required position
What to check
- Read stored/active DTCs and freeze frame data with an appropriate scan tool
- Check battery voltage and charging system at rest and under cranking (should be >12.0–12.5 V nominal)
- Visually inspect throttle body connector and wiring for damage, corrosion, or loose pins
- Inspect throttle body for carbon build-up or mechanical obstruction
- Compare accelerator pedal sensor signals and throttle position using the scan tool
- Perform an actuator test (commanded open/close) and observe target vs actual throttle angle
Signal parameters
- Battery/ignition supply voltage to throttle body (V)
- Actual throttle angle/position (%) or degrees
- Target throttle angle/position commanded by ECU
- Throttle actuator motor current (A) or motor drive feedback if available
- Accelerator Pedal Position Sensor 1 and 2 voltages/percent
- CAN/serial communication status between throttle module and ECU (if applicable)
Diagnostic algorithm
- Connect a full-function diagnostic scanner. Record the DTC, freeze frame and any related codes.
- Verify battery and charging system condition. Recharge or replace a weak battery before further testing.
- Visually inspect wiring and connectors at the throttle body and ECU. Repair any damaged wires or poor connections.
- With ignition on, monitor pedal position sensors and throttle position (target vs actual) while gently actuating the pedal. Look for inconsistencies or no movement.
- Command the throttle actuator using the scan tool (actuator test). Observe actual throttle movement and listen for unusual noises. If it fails to follow commands or binds, remove the throttle body for inspection.
- Remove and inspect the throttle body for carbon buildup, sticking plates, or debris. Clean using manufacturer-approved throttle body cleaner if mechanical sticking is present.
- After cleaning, repeat actuator/scan tests. If the throttle now moves correctly, perform the recommended throttle adaptation/relearn procedure per manufacturer instructions.
- If actuator still fails or current draw is abnormal, replace the throttle body assembly (or throttle module) and repeat adaptation/relearn.
- If replacement does not clear the issue, inspect/repair wiring harness power and ground feeds and re-check ECU communication. Consider ECU or throttle control module fault if wiring is confirmed good.
- Clear codes and road-test. Verify no recurrence and that adaptation values are within spec.
Likely causes
- Throttle body is dirty/sticking (carbon deposits) restricting motor recovery
- Intermittent wiring/connector fault at the throttle body (corrosion, broken wire)
- Throttle actuator motor failure or internal throttle module electronics fault
- Low system voltage during recovery (weak battery, bad alternator output, poor ground)
- Incorrect or out-of-range pedal position sensor input causing control mismatch
Fault status
Status
Throttle actuator did not complete the commanded recovery/movement. MIL set. Engine may run in reduced power mode until fault is resolved.
Repair difficulty: Medium
Diagnostic time: 1-3 hours
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Code
P1683
HUMMER
P — Powertrain
Driver 5 Line 3
AI status
Completed
Completed
100%
Causes
- Carbon build-up or mechanical binding in the throttle body preventing free movement
- Faulty throttle actuator motor or internal throttle body electronics
- Damaged wiring, poor connector contact or corroded terminals to throttle body
- Low battery voltage or poor ground affecting actuator operation
- Faulty accelerator pedal position sensor(s) or signal mismatch
- ECU or throttle control module software/firmware error or need for adaptation/relearn
Symptoms
- MIL (Malfunction Indicator Lamp) illuminated
- Reduced engine power / limp-mode activation
- Erratic or high/low idle
- Poor throttle response, hesitation or inability to accelerate normally
- Possible trouble starting if throttle cannot achieve required position
What to check
- Read stored/active DTCs and freeze frame data with an appropriate scan tool
- Check battery voltage and charging system at rest and under cranking (should be >12.0–12.5 V nominal)
- Visually inspect throttle body connector and wiring for damage, corrosion, or loose pins
- Inspect throttle body for carbon build-up or mechanical obstruction
- Compare accelerator pedal sensor signals and throttle position using the scan tool
- Perform an actuator test (commanded open/close) and observe target vs actual throttle angle
Signal parameters
- Battery/ignition supply voltage to throttle body (V)
- Actual throttle angle/position (%) or degrees
- Target throttle angle/position commanded by ECU
- Throttle actuator motor current (A) or motor drive feedback if available
- Accelerator Pedal Position Sensor 1 and 2 voltages/percent
- CAN/serial communication status between throttle module and ECU (if applicable)
Diagnostic algorithm
- Connect a full-function diagnostic scanner. Record the DTC, freeze frame and any related codes.
- Verify battery and charging system condition. Recharge or replace a weak battery before further testing.
- Visually inspect wiring and connectors at the throttle body and ECU. Repair any damaged wires or poor connections.
- With ignition on, monitor pedal position sensors and throttle position (target vs actual) while gently actuating the pedal. Look for inconsistencies or no movement.
- Command the throttle actuator using the scan tool (actuator test). Observe actual throttle movement and listen for unusual noises. If it fails to follow commands or binds, remove the throttle body for inspection.
- Remove and inspect the throttle body for carbon buildup, sticking plates, or debris. Clean using manufacturer-approved throttle body cleaner if mechanical sticking is present.
- After cleaning, repeat actuator/scan tests. If the throttle now moves correctly, perform the recommended throttle adaptation/relearn procedure per manufacturer instructions.
- If actuator still fails or current draw is abnormal, replace the throttle body assembly (or throttle module) and repeat adaptation/relearn.
- If replacement does not clear the issue, inspect/repair wiring harness power and ground feeds and re-check ECU communication. Consider ECU or throttle control module fault if wiring is confirmed good.
- Clear codes and road-test. Verify no recurrence and that adaptation values are within spec.
Likely causes
- Throttle body is dirty/sticking (carbon deposits) restricting motor recovery
- Intermittent wiring/connector fault at the throttle body (corrosion, broken wire)
- Throttle actuator motor failure or internal throttle module electronics fault
- Low system voltage during recovery (weak battery, bad alternator output, poor ground)
- Incorrect or out-of-range pedal position sensor input causing control mismatch
Fault status
Status
Throttle actuator did not complete the commanded recovery/movement. MIL set. Engine may run in reduced power mode until fault is resolved.
Repair difficulty: Medium
Diagnostic time: 1-3 hours
Similar codes
Repair manuals
Manual library for HUMMER
138
Browse 138 HUMMER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.
HUMMER
-
HUMMER: 2009
-
HUMMER: 2008
-
HUMMER: 2007
-
HUMMER: 2005
-
HUMMER: 2004
-
HUMMER: 2000
-
HUMMER: 1999
-
HUMMER: 1994
-
HUMMER: 1993
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Code
P1683
JEEP
P — Powertrain
Speed Control Power Relay Or Speed Control 12 Volt Driver Circuit Open Or Shorted
AI status
Completed
Completed
100%
Causes
- Carbon build-up or mechanical binding in the throttle body preventing free movement
- Faulty throttle actuator motor or internal throttle body electronics
- Damaged wiring, poor connector contact or corroded terminals to throttle body
- Low battery voltage or poor ground affecting actuator operation
- Faulty accelerator pedal position sensor(s) or signal mismatch
- ECU or throttle control module software/firmware error or need for adaptation/relearn
Symptoms
- MIL (Malfunction Indicator Lamp) illuminated
- Reduced engine power / limp-mode activation
- Erratic or high/low idle
- Poor throttle response, hesitation or inability to accelerate normally
- Possible trouble starting if throttle cannot achieve required position
What to check
- Read stored/active DTCs and freeze frame data with an appropriate scan tool
- Check battery voltage and charging system at rest and under cranking (should be >12.0–12.5 V nominal)
- Visually inspect throttle body connector and wiring for damage, corrosion, or loose pins
- Inspect throttle body for carbon build-up or mechanical obstruction
- Compare accelerator pedal sensor signals and throttle position using the scan tool
- Perform an actuator test (commanded open/close) and observe target vs actual throttle angle
Signal parameters
- Battery/ignition supply voltage to throttle body (V)
- Actual throttle angle/position (%) or degrees
- Target throttle angle/position commanded by ECU
- Throttle actuator motor current (A) or motor drive feedback if available
- Accelerator Pedal Position Sensor 1 and 2 voltages/percent
- CAN/serial communication status between throttle module and ECU (if applicable)
Diagnostic algorithm
- Connect a full-function diagnostic scanner. Record the DTC, freeze frame and any related codes.
- Verify battery and charging system condition. Recharge or replace a weak battery before further testing.
- Visually inspect wiring and connectors at the throttle body and ECU. Repair any damaged wires or poor connections.
- With ignition on, monitor pedal position sensors and throttle position (target vs actual) while gently actuating the pedal. Look for inconsistencies or no movement.
- Command the throttle actuator using the scan tool (actuator test). Observe actual throttle movement and listen for unusual noises. If it fails to follow commands or binds, remove the throttle body for inspection.
- Remove and inspect the throttle body for carbon buildup, sticking plates, or debris. Clean using manufacturer-approved throttle body cleaner if mechanical sticking is present.
- After cleaning, repeat actuator/scan tests. If the throttle now moves correctly, perform the recommended throttle adaptation/relearn procedure per manufacturer instructions.
- If actuator still fails or current draw is abnormal, replace the throttle body assembly (or throttle module) and repeat adaptation/relearn.
- If replacement does not clear the issue, inspect/repair wiring harness power and ground feeds and re-check ECU communication. Consider ECU or throttle control module fault if wiring is confirmed good.
- Clear codes and road-test. Verify no recurrence and that adaptation values are within spec.
Likely causes
- Throttle body is dirty/sticking (carbon deposits) restricting motor recovery
- Intermittent wiring/connector fault at the throttle body (corrosion, broken wire)
- Throttle actuator motor failure or internal throttle module electronics fault
- Low system voltage during recovery (weak battery, bad alternator output, poor ground)
- Incorrect or out-of-range pedal position sensor input causing control mismatch
Fault status
Status
Throttle actuator did not complete the commanded recovery/movement. MIL set. Engine may run in reduced power mode until fault is resolved.
Repair difficulty: Medium
Diagnostic time: 1-3 hours
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Code
P1683
MAZDA
P — Powertrain
Metering Oil Pump Temperature Sensor Circuit
AI status
Completed
Completed
100%
Causes
- Carbon build-up or mechanical binding in the throttle body preventing free movement
- Faulty throttle actuator motor or internal throttle body electronics
- Damaged wiring, poor connector contact or corroded terminals to throttle body
- Low battery voltage or poor ground affecting actuator operation
- Faulty accelerator pedal position sensor(s) or signal mismatch
- ECU or throttle control module software/firmware error or need for adaptation/relearn
Symptoms
- MIL (Malfunction Indicator Lamp) illuminated
- Reduced engine power / limp-mode activation
- Erratic or high/low idle
- Poor throttle response, hesitation or inability to accelerate normally
- Possible trouble starting if throttle cannot achieve required position
What to check
- Read stored/active DTCs and freeze frame data with an appropriate scan tool
- Check battery voltage and charging system at rest and under cranking (should be >12.0–12.5 V nominal)
- Visually inspect throttle body connector and wiring for damage, corrosion, or loose pins
- Inspect throttle body for carbon build-up or mechanical obstruction
- Compare accelerator pedal sensor signals and throttle position using the scan tool
- Perform an actuator test (commanded open/close) and observe target vs actual throttle angle
Signal parameters
- Battery/ignition supply voltage to throttle body (V)
- Actual throttle angle/position (%) or degrees
- Target throttle angle/position commanded by ECU
- Throttle actuator motor current (A) or motor drive feedback if available
- Accelerator Pedal Position Sensor 1 and 2 voltages/percent
- CAN/serial communication status between throttle module and ECU (if applicable)
Diagnostic algorithm
- Connect a full-function diagnostic scanner. Record the DTC, freeze frame and any related codes.
- Verify battery and charging system condition. Recharge or replace a weak battery before further testing.
- Visually inspect wiring and connectors at the throttle body and ECU. Repair any damaged wires or poor connections.
- With ignition on, monitor pedal position sensors and throttle position (target vs actual) while gently actuating the pedal. Look for inconsistencies or no movement.
- Command the throttle actuator using the scan tool (actuator test). Observe actual throttle movement and listen for unusual noises. If it fails to follow commands or binds, remove the throttle body for inspection.
- Remove and inspect the throttle body for carbon buildup, sticking plates, or debris. Clean using manufacturer-approved throttle body cleaner if mechanical sticking is present.
- After cleaning, repeat actuator/scan tests. If the throttle now moves correctly, perform the recommended throttle adaptation/relearn procedure per manufacturer instructions.
- If actuator still fails or current draw is abnormal, replace the throttle body assembly (or throttle module) and repeat adaptation/relearn.
- If replacement does not clear the issue, inspect/repair wiring harness power and ground feeds and re-check ECU communication. Consider ECU or throttle control module fault if wiring is confirmed good.
- Clear codes and road-test. Verify no recurrence and that adaptation values are within spec.
Likely causes
- Throttle body is dirty/sticking (carbon deposits) restricting motor recovery
- Intermittent wiring/connector fault at the throttle body (corrosion, broken wire)
- Throttle actuator motor failure or internal throttle module electronics fault
- Low system voltage during recovery (weak battery, bad alternator output, poor ground)
- Incorrect or out-of-range pedal position sensor input causing control mismatch
Fault status
Status
Throttle actuator did not complete the commanded recovery/movement. MIL set. Engine may run in reduced power mode until fault is resolved.
Repair difficulty: Medium
Diagnostic time: 1-3 hours
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Code
P1683
MINI
P — Powertrain
Electronic throttle control monitor level 2/3 - idle speed 'b' calculation fault
AI status
Completed
Completed
100%
Causes
- Carbon build-up or mechanical binding in the throttle body preventing free movement
- Faulty throttle actuator motor or internal throttle body electronics
- Damaged wiring, poor connector contact or corroded terminals to throttle body
- Low battery voltage or poor ground affecting actuator operation
- Faulty accelerator pedal position sensor(s) or signal mismatch
- ECU or throttle control module software/firmware error or need for adaptation/relearn
Symptoms
- MIL (Malfunction Indicator Lamp) illuminated
- Reduced engine power / limp-mode activation
- Erratic or high/low idle
- Poor throttle response, hesitation or inability to accelerate normally
- Possible trouble starting if throttle cannot achieve required position
What to check
- Read stored/active DTCs and freeze frame data with an appropriate scan tool
- Check battery voltage and charging system at rest and under cranking (should be >12.0–12.5 V nominal)
- Visually inspect throttle body connector and wiring for damage, corrosion, or loose pins
- Inspect throttle body for carbon build-up or mechanical obstruction
- Compare accelerator pedal sensor signals and throttle position using the scan tool
- Perform an actuator test (commanded open/close) and observe target vs actual throttle angle
Signal parameters
- Battery/ignition supply voltage to throttle body (V)
- Actual throttle angle/position (%) or degrees
- Target throttle angle/position commanded by ECU
- Throttle actuator motor current (A) or motor drive feedback if available
- Accelerator Pedal Position Sensor 1 and 2 voltages/percent
- CAN/serial communication status between throttle module and ECU (if applicable)
Diagnostic algorithm
- Connect a full-function diagnostic scanner. Record the DTC, freeze frame and any related codes.
- Verify battery and charging system condition. Recharge or replace a weak battery before further testing.
- Visually inspect wiring and connectors at the throttle body and ECU. Repair any damaged wires or poor connections.
- With ignition on, monitor pedal position sensors and throttle position (target vs actual) while gently actuating the pedal. Look for inconsistencies or no movement.
- Command the throttle actuator using the scan tool (actuator test). Observe actual throttle movement and listen for unusual noises. If it fails to follow commands or binds, remove the throttle body for inspection.
- Remove and inspect the throttle body for carbon buildup, sticking plates, or debris. Clean using manufacturer-approved throttle body cleaner if mechanical sticking is present.
- After cleaning, repeat actuator/scan tests. If the throttle now moves correctly, perform the recommended throttle adaptation/relearn procedure per manufacturer instructions.
- If actuator still fails or current draw is abnormal, replace the throttle body assembly (or throttle module) and repeat adaptation/relearn.
- If replacement does not clear the issue, inspect/repair wiring harness power and ground feeds and re-check ECU communication. Consider ECU or throttle control module fault if wiring is confirmed good.
- Clear codes and road-test. Verify no recurrence and that adaptation values are within spec.
Likely causes
- Throttle body is dirty/sticking (carbon deposits) restricting motor recovery
- Intermittent wiring/connector fault at the throttle body (corrosion, broken wire)
- Throttle actuator motor failure or internal throttle module electronics fault
- Low system voltage during recovery (weak battery, bad alternator output, poor ground)
- Incorrect or out-of-range pedal position sensor input causing control mismatch
Fault status
Status
Throttle actuator did not complete the commanded recovery/movement. MIL set. Engine may run in reduced power mode until fault is resolved.
Repair difficulty: Medium
Diagnostic time: 1-3 hours
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Code
P1683
OLDSMOBILE
P — Powertrain
Driver 5 Line 3
AI status
Completed
Completed
100%
Causes
- Carbon build-up or mechanical binding in the throttle body preventing free movement
- Faulty throttle actuator motor or internal throttle body electronics
- Damaged wiring, poor connector contact or corroded terminals to throttle body
- Low battery voltage or poor ground affecting actuator operation
- Faulty accelerator pedal position sensor(s) or signal mismatch
- ECU or throttle control module software/firmware error or need for adaptation/relearn
Symptoms
- MIL (Malfunction Indicator Lamp) illuminated
- Reduced engine power / limp-mode activation
- Erratic or high/low idle
- Poor throttle response, hesitation or inability to accelerate normally
- Possible trouble starting if throttle cannot achieve required position
What to check
- Read stored/active DTCs and freeze frame data with an appropriate scan tool
- Check battery voltage and charging system at rest and under cranking (should be >12.0–12.5 V nominal)
- Visually inspect throttle body connector and wiring for damage, corrosion, or loose pins
- Inspect throttle body for carbon build-up or mechanical obstruction
- Compare accelerator pedal sensor signals and throttle position using the scan tool
- Perform an actuator test (commanded open/close) and observe target vs actual throttle angle
Signal parameters
- Battery/ignition supply voltage to throttle body (V)
- Actual throttle angle/position (%) or degrees
- Target throttle angle/position commanded by ECU
- Throttle actuator motor current (A) or motor drive feedback if available
- Accelerator Pedal Position Sensor 1 and 2 voltages/percent
- CAN/serial communication status between throttle module and ECU (if applicable)
Diagnostic algorithm
- Connect a full-function diagnostic scanner. Record the DTC, freeze frame and any related codes.
- Verify battery and charging system condition. Recharge or replace a weak battery before further testing.
- Visually inspect wiring and connectors at the throttle body and ECU. Repair any damaged wires or poor connections.
- With ignition on, monitor pedal position sensors and throttle position (target vs actual) while gently actuating the pedal. Look for inconsistencies or no movement.
- Command the throttle actuator using the scan tool (actuator test). Observe actual throttle movement and listen for unusual noises. If it fails to follow commands or binds, remove the throttle body for inspection.
- Remove and inspect the throttle body for carbon buildup, sticking plates, or debris. Clean using manufacturer-approved throttle body cleaner if mechanical sticking is present.
- After cleaning, repeat actuator/scan tests. If the throttle now moves correctly, perform the recommended throttle adaptation/relearn procedure per manufacturer instructions.
- If actuator still fails or current draw is abnormal, replace the throttle body assembly (or throttle module) and repeat adaptation/relearn.
- If replacement does not clear the issue, inspect/repair wiring harness power and ground feeds and re-check ECU communication. Consider ECU or throttle control module fault if wiring is confirmed good.
- Clear codes and road-test. Verify no recurrence and that adaptation values are within spec.
Likely causes
- Throttle body is dirty/sticking (carbon deposits) restricting motor recovery
- Intermittent wiring/connector fault at the throttle body (corrosion, broken wire)
- Throttle actuator motor failure or internal throttle module electronics fault
- Low system voltage during recovery (weak battery, bad alternator output, poor ground)
- Incorrect or out-of-range pedal position sensor input causing control mismatch
Fault status
Status
Throttle actuator did not complete the commanded recovery/movement. MIL set. Engine may run in reduced power mode until fault is resolved.
Repair difficulty: Medium
Diagnostic time: 1-3 hours
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Code
P1683
Other
P — Powertrain
Metering Oil Pump Temperature Sensor Circuit Malfunction
AI status
Completed
Completed
100%
Causes
- Carbon build-up or mechanical binding in the throttle body preventing free movement
- Faulty throttle actuator motor or internal throttle body electronics
- Damaged wiring, poor connector contact or corroded terminals to throttle body
- Low battery voltage or poor ground affecting actuator operation
- Faulty accelerator pedal position sensor(s) or signal mismatch
- ECU or throttle control module software/firmware error or need for adaptation/relearn
Symptoms
- MIL (Malfunction Indicator Lamp) illuminated
- Reduced engine power / limp-mode activation
- Erratic or high/low idle
- Poor throttle response, hesitation or inability to accelerate normally
- Possible trouble starting if throttle cannot achieve required position
What to check
- Read stored/active DTCs and freeze frame data with an appropriate scan tool
- Check battery voltage and charging system at rest and under cranking (should be >12.0–12.5 V nominal)
- Visually inspect throttle body connector and wiring for damage, corrosion, or loose pins
- Inspect throttle body for carbon build-up or mechanical obstruction
- Compare accelerator pedal sensor signals and throttle position using the scan tool
- Perform an actuator test (commanded open/close) and observe target vs actual throttle angle
Signal parameters
- Battery/ignition supply voltage to throttle body (V)
- Actual throttle angle/position (%) or degrees
- Target throttle angle/position commanded by ECU
- Throttle actuator motor current (A) or motor drive feedback if available
- Accelerator Pedal Position Sensor 1 and 2 voltages/percent
- CAN/serial communication status between throttle module and ECU (if applicable)
Diagnostic algorithm
- Connect a full-function diagnostic scanner. Record the DTC, freeze frame and any related codes.
- Verify battery and charging system condition. Recharge or replace a weak battery before further testing.
- Visually inspect wiring and connectors at the throttle body and ECU. Repair any damaged wires or poor connections.
- With ignition on, monitor pedal position sensors and throttle position (target vs actual) while gently actuating the pedal. Look for inconsistencies or no movement.
- Command the throttle actuator using the scan tool (actuator test). Observe actual throttle movement and listen for unusual noises. If it fails to follow commands or binds, remove the throttle body for inspection.
- Remove and inspect the throttle body for carbon buildup, sticking plates, or debris. Clean using manufacturer-approved throttle body cleaner if mechanical sticking is present.
- After cleaning, repeat actuator/scan tests. If the throttle now moves correctly, perform the recommended throttle adaptation/relearn procedure per manufacturer instructions.
- If actuator still fails or current draw is abnormal, replace the throttle body assembly (or throttle module) and repeat adaptation/relearn.
- If replacement does not clear the issue, inspect/repair wiring harness power and ground feeds and re-check ECU communication. Consider ECU or throttle control module fault if wiring is confirmed good.
- Clear codes and road-test. Verify no recurrence and that adaptation values are within spec.
Likely causes
- Throttle body is dirty/sticking (carbon deposits) restricting motor recovery
- Intermittent wiring/connector fault at the throttle body (corrosion, broken wire)
- Throttle actuator motor failure or internal throttle module electronics fault
- Low system voltage during recovery (weak battery, bad alternator output, poor ground)
- Incorrect or out-of-range pedal position sensor input causing control mismatch
Fault status
Status
Throttle actuator did not complete the commanded recovery/movement. MIL set. Engine may run in reduced power mode until fault is resolved.
Repair difficulty: Medium
Diagnostic time: 1-3 hours
Similar codes
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Code
P1683
PLYMOUTH
P — Powertrain
Speed Control Power Relay Or Speed Control 12 Volt Driver Circuit Open Or Shorted
AI status
Completed
Completed
100%
Causes
- Carbon build-up or mechanical binding in the throttle body preventing free movement
- Faulty throttle actuator motor or internal throttle body electronics
- Damaged wiring, poor connector contact or corroded terminals to throttle body
- Low battery voltage or poor ground affecting actuator operation
- Faulty accelerator pedal position sensor(s) or signal mismatch
- ECU or throttle control module software/firmware error or need for adaptation/relearn
Symptoms
- MIL (Malfunction Indicator Lamp) illuminated
- Reduced engine power / limp-mode activation
- Erratic or high/low idle
- Poor throttle response, hesitation or inability to accelerate normally
- Possible trouble starting if throttle cannot achieve required position
What to check
- Read stored/active DTCs and freeze frame data with an appropriate scan tool
- Check battery voltage and charging system at rest and under cranking (should be >12.0–12.5 V nominal)
- Visually inspect throttle body connector and wiring for damage, corrosion, or loose pins
- Inspect throttle body for carbon build-up or mechanical obstruction
- Compare accelerator pedal sensor signals and throttle position using the scan tool
- Perform an actuator test (commanded open/close) and observe target vs actual throttle angle
Signal parameters
- Battery/ignition supply voltage to throttle body (V)
- Actual throttle angle/position (%) or degrees
- Target throttle angle/position commanded by ECU
- Throttle actuator motor current (A) or motor drive feedback if available
- Accelerator Pedal Position Sensor 1 and 2 voltages/percent
- CAN/serial communication status between throttle module and ECU (if applicable)
Diagnostic algorithm
- Connect a full-function diagnostic scanner. Record the DTC, freeze frame and any related codes.
- Verify battery and charging system condition. Recharge or replace a weak battery before further testing.
- Visually inspect wiring and connectors at the throttle body and ECU. Repair any damaged wires or poor connections.
- With ignition on, monitor pedal position sensors and throttle position (target vs actual) while gently actuating the pedal. Look for inconsistencies or no movement.
- Command the throttle actuator using the scan tool (actuator test). Observe actual throttle movement and listen for unusual noises. If it fails to follow commands or binds, remove the throttle body for inspection.
- Remove and inspect the throttle body for carbon buildup, sticking plates, or debris. Clean using manufacturer-approved throttle body cleaner if mechanical sticking is present.
- After cleaning, repeat actuator/scan tests. If the throttle now moves correctly, perform the recommended throttle adaptation/relearn procedure per manufacturer instructions.
- If actuator still fails or current draw is abnormal, replace the throttle body assembly (or throttle module) and repeat adaptation/relearn.
- If replacement does not clear the issue, inspect/repair wiring harness power and ground feeds and re-check ECU communication. Consider ECU or throttle control module fault if wiring is confirmed good.
- Clear codes and road-test. Verify no recurrence and that adaptation values are within spec.
Likely causes
- Throttle body is dirty/sticking (carbon deposits) restricting motor recovery
- Intermittent wiring/connector fault at the throttle body (corrosion, broken wire)
- Throttle actuator motor failure or internal throttle module electronics fault
- Low system voltage during recovery (weak battery, bad alternator output, poor ground)
- Incorrect or out-of-range pedal position sensor input causing control mismatch
Fault status
Status
Throttle actuator did not complete the commanded recovery/movement. MIL set. Engine may run in reduced power mode until fault is resolved.
Repair difficulty: Medium
Diagnostic time: 1-3 hours
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Code
P1683
PONTIAC
P — Powertrain
Speed Control Power Relay Or Speed Control 12 Volt Driver Circuit Open Or Shorted
AI status
Completed
Completed
100%
Causes
- Carbon build-up or mechanical binding in the throttle body preventing free movement
- Faulty throttle actuator motor or internal throttle body electronics
- Damaged wiring, poor connector contact or corroded terminals to throttle body
- Low battery voltage or poor ground affecting actuator operation
- Faulty accelerator pedal position sensor(s) or signal mismatch
- ECU or throttle control module software/firmware error or need for adaptation/relearn
Symptoms
- MIL (Malfunction Indicator Lamp) illuminated
- Reduced engine power / limp-mode activation
- Erratic or high/low idle
- Poor throttle response, hesitation or inability to accelerate normally
- Possible trouble starting if throttle cannot achieve required position
What to check
- Read stored/active DTCs and freeze frame data with an appropriate scan tool
- Check battery voltage and charging system at rest and under cranking (should be >12.0–12.5 V nominal)
- Visually inspect throttle body connector and wiring for damage, corrosion, or loose pins
- Inspect throttle body for carbon build-up or mechanical obstruction
- Compare accelerator pedal sensor signals and throttle position using the scan tool
- Perform an actuator test (commanded open/close) and observe target vs actual throttle angle
Signal parameters
- Battery/ignition supply voltage to throttle body (V)
- Actual throttle angle/position (%) or degrees
- Target throttle angle/position commanded by ECU
- Throttle actuator motor current (A) or motor drive feedback if available
- Accelerator Pedal Position Sensor 1 and 2 voltages/percent
- CAN/serial communication status between throttle module and ECU (if applicable)
Diagnostic algorithm
- Connect a full-function diagnostic scanner. Record the DTC, freeze frame and any related codes.
- Verify battery and charging system condition. Recharge or replace a weak battery before further testing.
- Visually inspect wiring and connectors at the throttle body and ECU. Repair any damaged wires or poor connections.
- With ignition on, monitor pedal position sensors and throttle position (target vs actual) while gently actuating the pedal. Look for inconsistencies or no movement.
- Command the throttle actuator using the scan tool (actuator test). Observe actual throttle movement and listen for unusual noises. If it fails to follow commands or binds, remove the throttle body for inspection.
- Remove and inspect the throttle body for carbon buildup, sticking plates, or debris. Clean using manufacturer-approved throttle body cleaner if mechanical sticking is present.
- After cleaning, repeat actuator/scan tests. If the throttle now moves correctly, perform the recommended throttle adaptation/relearn procedure per manufacturer instructions.
- If actuator still fails or current draw is abnormal, replace the throttle body assembly (or throttle module) and repeat adaptation/relearn.
- If replacement does not clear the issue, inspect/repair wiring harness power and ground feeds and re-check ECU communication. Consider ECU or throttle control module fault if wiring is confirmed good.
- Clear codes and road-test. Verify no recurrence and that adaptation values are within spec.
Likely causes
- Throttle body is dirty/sticking (carbon deposits) restricting motor recovery
- Intermittent wiring/connector fault at the throttle body (corrosion, broken wire)
- Throttle actuator motor failure or internal throttle module electronics fault
- Low system voltage during recovery (weak battery, bad alternator output, poor ground)
- Incorrect or out-of-range pedal position sensor input causing control mismatch
Fault status
Status
Throttle actuator did not complete the commanded recovery/movement. MIL set. Engine may run in reduced power mode until fault is resolved.
Repair difficulty: Medium
Diagnostic time: 1-3 hours
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Code
P1683
RAM
P — Powertrain
Speed control servo power control circuit
AI status
Completed
Completed
100%
Causes
- Carbon build-up or mechanical binding in the throttle body preventing free movement
- Faulty throttle actuator motor or internal throttle body electronics
- Damaged wiring, poor connector contact or corroded terminals to throttle body
- Low battery voltage or poor ground affecting actuator operation
- Faulty accelerator pedal position sensor(s) or signal mismatch
- ECU or throttle control module software/firmware error or need for adaptation/relearn
Symptoms
- MIL (Malfunction Indicator Lamp) illuminated
- Reduced engine power / limp-mode activation
- Erratic or high/low idle
- Poor throttle response, hesitation or inability to accelerate normally
- Possible trouble starting if throttle cannot achieve required position
What to check
- Read stored/active DTCs and freeze frame data with an appropriate scan tool
- Check battery voltage and charging system at rest and under cranking (should be >12.0–12.5 V nominal)
- Visually inspect throttle body connector and wiring for damage, corrosion, or loose pins
- Inspect throttle body for carbon build-up or mechanical obstruction
- Compare accelerator pedal sensor signals and throttle position using the scan tool
- Perform an actuator test (commanded open/close) and observe target vs actual throttle angle
Signal parameters
- Battery/ignition supply voltage to throttle body (V)
- Actual throttle angle/position (%) or degrees
- Target throttle angle/position commanded by ECU
- Throttle actuator motor current (A) or motor drive feedback if available
- Accelerator Pedal Position Sensor 1 and 2 voltages/percent
- CAN/serial communication status between throttle module and ECU (if applicable)
Diagnostic algorithm
- Connect a full-function diagnostic scanner. Record the DTC, freeze frame and any related codes.
- Verify battery and charging system condition. Recharge or replace a weak battery before further testing.
- Visually inspect wiring and connectors at the throttle body and ECU. Repair any damaged wires or poor connections.
- With ignition on, monitor pedal position sensors and throttle position (target vs actual) while gently actuating the pedal. Look for inconsistencies or no movement.
- Command the throttle actuator using the scan tool (actuator test). Observe actual throttle movement and listen for unusual noises. If it fails to follow commands or binds, remove the throttle body for inspection.
- Remove and inspect the throttle body for carbon buildup, sticking plates, or debris. Clean using manufacturer-approved throttle body cleaner if mechanical sticking is present.
- After cleaning, repeat actuator/scan tests. If the throttle now moves correctly, perform the recommended throttle adaptation/relearn procedure per manufacturer instructions.
- If actuator still fails or current draw is abnormal, replace the throttle body assembly (or throttle module) and repeat adaptation/relearn.
- If replacement does not clear the issue, inspect/repair wiring harness power and ground feeds and re-check ECU communication. Consider ECU or throttle control module fault if wiring is confirmed good.
- Clear codes and road-test. Verify no recurrence and that adaptation values are within spec.
Likely causes
- Throttle body is dirty/sticking (carbon deposits) restricting motor recovery
- Intermittent wiring/connector fault at the throttle body (corrosion, broken wire)
- Throttle actuator motor failure or internal throttle module electronics fault
- Low system voltage during recovery (weak battery, bad alternator output, poor ground)
- Incorrect or out-of-range pedal position sensor input causing control mismatch
Fault status
Status
Throttle actuator did not complete the commanded recovery/movement. MIL set. Engine may run in reduced power mode until fault is resolved.
Repair difficulty: Medium
Diagnostic time: 1-3 hours
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Code
P1683
SATURN
P — Powertrain
Driver 5 Line 3
AI status
Completed
Completed
100%
Causes
- Carbon build-up or mechanical binding in the throttle body preventing free movement
- Faulty throttle actuator motor or internal throttle body electronics
- Damaged wiring, poor connector contact or corroded terminals to throttle body
- Low battery voltage or poor ground affecting actuator operation
- Faulty accelerator pedal position sensor(s) or signal mismatch
- ECU or throttle control module software/firmware error or need for adaptation/relearn
Symptoms
- MIL (Malfunction Indicator Lamp) illuminated
- Reduced engine power / limp-mode activation
- Erratic or high/low idle
- Poor throttle response, hesitation or inability to accelerate normally
- Possible trouble starting if throttle cannot achieve required position
What to check
- Read stored/active DTCs and freeze frame data with an appropriate scan tool
- Check battery voltage and charging system at rest and under cranking (should be >12.0–12.5 V nominal)
- Visually inspect throttle body connector and wiring for damage, corrosion, or loose pins
- Inspect throttle body for carbon build-up or mechanical obstruction
- Compare accelerator pedal sensor signals and throttle position using the scan tool
- Perform an actuator test (commanded open/close) and observe target vs actual throttle angle
Signal parameters
- Battery/ignition supply voltage to throttle body (V)
- Actual throttle angle/position (%) or degrees
- Target throttle angle/position commanded by ECU
- Throttle actuator motor current (A) or motor drive feedback if available
- Accelerator Pedal Position Sensor 1 and 2 voltages/percent
- CAN/serial communication status between throttle module and ECU (if applicable)
Diagnostic algorithm
- Connect a full-function diagnostic scanner. Record the DTC, freeze frame and any related codes.
- Verify battery and charging system condition. Recharge or replace a weak battery before further testing.
- Visually inspect wiring and connectors at the throttle body and ECU. Repair any damaged wires or poor connections.
- With ignition on, monitor pedal position sensors and throttle position (target vs actual) while gently actuating the pedal. Look for inconsistencies or no movement.
- Command the throttle actuator using the scan tool (actuator test). Observe actual throttle movement and listen for unusual noises. If it fails to follow commands or binds, remove the throttle body for inspection.
- Remove and inspect the throttle body for carbon buildup, sticking plates, or debris. Clean using manufacturer-approved throttle body cleaner if mechanical sticking is present.
- After cleaning, repeat actuator/scan tests. If the throttle now moves correctly, perform the recommended throttle adaptation/relearn procedure per manufacturer instructions.
- If actuator still fails or current draw is abnormal, replace the throttle body assembly (or throttle module) and repeat adaptation/relearn.
- If replacement does not clear the issue, inspect/repair wiring harness power and ground feeds and re-check ECU communication. Consider ECU or throttle control module fault if wiring is confirmed good.
- Clear codes and road-test. Verify no recurrence and that adaptation values are within spec.
Likely causes
- Throttle body is dirty/sticking (carbon deposits) restricting motor recovery
- Intermittent wiring/connector fault at the throttle body (corrosion, broken wire)
- Throttle actuator motor failure or internal throttle module electronics fault
- Low system voltage during recovery (weak battery, bad alternator output, poor ground)
- Incorrect or out-of-range pedal position sensor input causing control mismatch
Fault status
Status
Throttle actuator did not complete the commanded recovery/movement. MIL set. Engine may run in reduced power mode until fault is resolved.
Repair difficulty: Medium
Diagnostic time: 1-3 hours
Similar codes
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Was this AI description helpful?
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