Code
P061F
Generic
P — Powertrain
Internal Control Module Throttle Actuator Controller Performance
Views:
UK: 18
EN: 60
RU: 29
AI status
Completed
Completed
100%
Causes
- Faulty throttle actuator assembly (motor, gears, or internal controller)
- Poor power supply or low battery voltage to the throttle/ECM
- Corroded, loose, damaged or shorted wiring/connectors to the throttle actuator or ECM
- Poor or intermittent ground(s)
- Faulty ECM/PCM or internal module failure
- Contaminated or mechanically sticking throttle plate
Symptoms
- Malfunction Indicator Lamp (MIL) / Check Engine Light illuminated
- Reduced engine power / “limp” mode (reduced throttle response)
- Unresponsive or delayed throttle/pedal response
- Engine surging, rough idle, or stalling at idle
- Stored ETC or throttle-related codes in addition to P061F
What to check
- Read all stored/active DTCs and freeze frame data with a capable scanner
- Record battery voltage at key-on and while cranking/running (should be ~12.4–14.7 V nominal)
- Visually inspect throttle body connector, wiring harness, and ECM connector for damage, corrosion, or water intrusion
- Check and secure engine ground points related to ECM/throttle body
- Verify pedal position sensor signals and compare to throttle position sensor values using live data
- Attempt an active test (commanded throttle open/close) with a scan tool and observe response and any error messages
Signal parameters
- Battery supply to throttle/ECM: ~12–14.7 V (vehicle dependent)
- Throttle position sensor (TPS) idle voltage: approximately 0.5–1.5 V; full open about 3.5–4.5 V (values vary by make)
- Pedal position sensor (APP) outputs should correlate to TPS and change smoothly with pedal travel
- Throttle motor control: duty cycle or PWM command from ECM; observe changes when commanding open/close
- Throttle plate angle: should move within expected degrees when commanded; response time should be quick and smooth
Diagnostic algorithm
- Retrieve all DTCs, freeze frame and live data. Note battery voltage and engine conditions when the code set.
- Inspect wiring and connectors to the throttle body and ECM for damage, corrosion, or poor pins. Repair any physical damage.
- Check battery and charging system; ensure stable supply voltage during tests. Charge or replace battery if low.
- Clear codes and attempt to reproduce fault while monitoring TPS, APP and throttle motor command (duty/current) with a scan tool.
- Perform an active throttle control test (open/close) from the scanner. Verify throttle plate movement and compare commanded vs actual positions.
- If feedback signals (TPS/APP) do not match commands, isolate with backprobe tests: verify power, ground and signal continuity between throttle body and ECM.
- If wiring and power/grounds are good but internal throttle controller still fails or reports internal errors, check for available software updates or reflash ECM/throttle body module per manufacturer procedures.
- If module reflash is not available or fails to clear fault and all electrical/mechanical checks are good, consider replacing the throttle actuator assembly or ECM per vehicle-specific diagnostics. After repairs, perform relearn/calibration procedures and verify repair by road test.
- Document findings and advise customer of any replaced modules and required programming or adaptations.
Likely causes
- Damaged throttle actuator control module inside the throttle body
- Open/short in power or ground circuit to the throttle actuator
- Faulty throttle position sensor(s) or pedal position sensor causing inconsistent feedback
- Battery/charging system voltage below acceptable threshold during operation
- Corrosion or poor connector pin contact at throttle body or ECM
Fault status
Status
Internal Control Module Throttle Actuator Controller Performance — ETC subsystem not performing within expected parameters; check throttle actuator, power/grounds, wiring, sensors, and module software.
Repair difficulty: Medium
Diagnostic time: 1.5-3 hours
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Code
P061F
LAND ROVER
P — Powertrain
Actuator control performance internal control module
Views:
UK: 4
EN: 29
RU: 9
AI status
Completed
Completed
100%
Causes
- Faulty throttle actuator assembly (motor, gears, or internal controller)
- Poor power supply or low battery voltage to the throttle/ECM
- Corroded, loose, damaged or shorted wiring/connectors to the throttle actuator or ECM
- Poor or intermittent ground(s)
- Faulty ECM/PCM or internal module failure
- Contaminated or mechanically sticking throttle plate
Symptoms
- Malfunction Indicator Lamp (MIL) / Check Engine Light illuminated
- Reduced engine power / “limp” mode (reduced throttle response)
- Unresponsive or delayed throttle/pedal response
- Engine surging, rough idle, or stalling at idle
- Stored ETC or throttle-related codes in addition to P061F
What to check
- Read all stored/active DTCs and freeze frame data with a capable scanner
- Record battery voltage at key-on and while cranking/running (should be ~12.4–14.7 V nominal)
- Visually inspect throttle body connector, wiring harness, and ECM connector for damage, corrosion, or water intrusion
- Check and secure engine ground points related to ECM/throttle body
- Verify pedal position sensor signals and compare to throttle position sensor values using live data
- Attempt an active test (commanded throttle open/close) with a scan tool and observe response and any error messages
Signal parameters
- Battery supply to throttle/ECM: ~12–14.7 V (vehicle dependent)
- Throttle position sensor (TPS) idle voltage: approximately 0.5–1.5 V; full open about 3.5–4.5 V (values vary by make)
- Pedal position sensor (APP) outputs should correlate to TPS and change smoothly with pedal travel
- Throttle motor control: duty cycle or PWM command from ECM; observe changes when commanding open/close
- Throttle plate angle: should move within expected degrees when commanded; response time should be quick and smooth
Diagnostic algorithm
- Retrieve all DTCs, freeze frame and live data. Note battery voltage and engine conditions when the code set.
- Inspect wiring and connectors to the throttle body and ECM for damage, corrosion, or poor pins. Repair any physical damage.
- Check battery and charging system; ensure stable supply voltage during tests. Charge or replace battery if low.
- Clear codes and attempt to reproduce fault while monitoring TPS, APP and throttle motor command (duty/current) with a scan tool.
- Perform an active throttle control test (open/close) from the scanner. Verify throttle plate movement and compare commanded vs actual positions.
- If feedback signals (TPS/APP) do not match commands, isolate with backprobe tests: verify power, ground and signal continuity between throttle body and ECM.
- If wiring and power/grounds are good but internal throttle controller still fails or reports internal errors, check for available software updates or reflash ECM/throttle body module per manufacturer procedures.
- If module reflash is not available or fails to clear fault and all electrical/mechanical checks are good, consider replacing the throttle actuator assembly or ECM per vehicle-specific diagnostics. After repairs, perform relearn/calibration procedures and verify repair by road test.
- Document findings and advise customer of any replaced modules and required programming or adaptations.
Likely causes
- Damaged throttle actuator control module inside the throttle body
- Open/short in power or ground circuit to the throttle actuator
- Faulty throttle position sensor(s) or pedal position sensor causing inconsistent feedback
- Battery/charging system voltage below acceptable threshold during operation
- Corrosion or poor connector pin contact at throttle body or ECM
Fault status
Status
Internal Control Module Throttle Actuator Controller Performance — ETC subsystem not performing within expected parameters; check throttle actuator, power/grounds, wiring, sensors, and module software.
Repair difficulty: Medium
Diagnostic time: 1.5-3 hours
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Repair manuals for LAND ROVER
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Land Rover Defender 300Tdi — Workshop Manual (1996 model year)
Workshop Manual199,00 UAH
Land Rover Defender Workshop Manual Supplement & Body Repair Manual (1999 & 2002 MY)
Workshop Manual199,00 UAH
Land Rover Range Rover — Electrical Library (LRL 0453ENG, 2002)
Workshop Manual199,00 UAH
Your experience will help others
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Was this AI description helpful?
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