Code
P1836
BUICK
P — Powertrain
Kick-Down Switch Failed Open
AI status
Completed
Completed
100%
Causes
- Open or broken wiring between kick‑down switch and TCM/PCM
- Corroded/loose connector at the kick‑down switch or at the TCM
- Failed kick‑down (throttle) switch or internal contacts open
- Aftermarket throttle or transmission hardware interfering with switch
- TCM/PCM input circuit fault (less common)
- Mechanical damage where harness passes (chafing, pinched, rod/pedal linkage damage)
Symptoms
- Check Engine/Transmission light or MIL illuminated
- No kick‑down/downshift under wide‑open throttle or delayed downshift
- Reduced performance or hesitation during hard acceleration
- Transmission may stay in a higher gear or shift improperly
- Stored DTC P1836 (kick‑down switch open)
What to check
- Read and record all stored codes and freeze‑frame data with a scan tool
- Check live data for kick‑down switch status while operating throttle
- Visually inspect switch, connectors and wiring for damage or corrosion
- Backprobe the switch connector and observe signal while actuating throttle
- Perform continuity and resistance checks on the switch and wiring to TCM
- Wiggle wiring harness while observing live data to find intermittent opens
Signal parameters
- Expected: switch toggles between two states (closed/ground or open/high) when throttle/kick‑down is actuated; exact polarity depends on vehicle — consult service manual
- Open condition: infinite resistance (open circuit) between switch terminals or no change in voltage when actuated
- Closed condition: low resistance (near 0 ohms) or a defined reference voltage/ground shown at TCM input when actuated
- Typical test voltages: switch may switch a 5V reference or a ground return; voltage levels vary by model—use factory pin‑out for exact values
Diagnostic algorithm
- Verify the code: connect a capable scan tool, read P1836 and any related codes, note freeze‑frame and live data.
- Visual inspection: inspect the kick‑down switch, cable/linkage area, connectors, and wiring for obvious damage, corrosion, or disconnection.
- Identify pins: locate service manual wiring diagram and pin‑out for the kick‑down switch and TCM connector.
- Backprobe and observe: with ignition ON (engine running if safe), backprobe the switch connector and observe live data while slowly and fully depressing the throttle; note if the switch changes state.
- Continuity test: remove connector, measure resistance across switch terminals while actuating. If open when it should be closed (or never changes), the switch is faulty.
- Wiring test: check continuity between the switch connector and the TCM input pin. Repair any open circuits, broken wires, or poor splices.
- Connector/ground check: clean and repair corroded pins; ensure proper grounds and 12V/5V reference (if applicable) are present at the connector.
- Substitute/replace: if wiring and connector are good but switch does not operate, replace the kick‑down switch assembly.
- Re‑test: clear codes, perform a test drive with scan tool monitoring the kick‑down input and transmission operation. Confirm code does not return.
- If problem persists after repairs, test/replace TCM input circuit or consult factory diagnostics for module testing.
Likely causes
- Damaged or disconnected harness/connector at the kick‑down switch
- Failed switch contacts (open when they should be closed)
- Corrosion or bent pins at switch connector
- Wiring short to open at harness splice or through-body routing
- Faulty TCM input circuit (verify after wiring and switch tests)
Fault status
Status
Kick‑Down Switch Circuit Open — TCM reports open/no signal from kick‑down switch input. May prevent commanded downshifts during heavy throttle. Inspect switch, wiring and connectors; verify TCM input.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Code
P1836
CADILLAC
P — Powertrain
Kick-Down Switch Failed Open
AI status
Completed
Completed
100%
Causes
- Open or broken wiring between kick‑down switch and TCM/PCM
- Corroded/loose connector at the kick‑down switch or at the TCM
- Failed kick‑down (throttle) switch or internal contacts open
- Aftermarket throttle or transmission hardware interfering with switch
- TCM/PCM input circuit fault (less common)
- Mechanical damage where harness passes (chafing, pinched, rod/pedal linkage damage)
Symptoms
- Check Engine/Transmission light or MIL illuminated
- No kick‑down/downshift under wide‑open throttle or delayed downshift
- Reduced performance or hesitation during hard acceleration
- Transmission may stay in a higher gear or shift improperly
- Stored DTC P1836 (kick‑down switch open)
What to check
- Read and record all stored codes and freeze‑frame data with a scan tool
- Check live data for kick‑down switch status while operating throttle
- Visually inspect switch, connectors and wiring for damage or corrosion
- Backprobe the switch connector and observe signal while actuating throttle
- Perform continuity and resistance checks on the switch and wiring to TCM
- Wiggle wiring harness while observing live data to find intermittent opens
Signal parameters
- Expected: switch toggles between two states (closed/ground or open/high) when throttle/kick‑down is actuated; exact polarity depends on vehicle — consult service manual
- Open condition: infinite resistance (open circuit) between switch terminals or no change in voltage when actuated
- Closed condition: low resistance (near 0 ohms) or a defined reference voltage/ground shown at TCM input when actuated
- Typical test voltages: switch may switch a 5V reference or a ground return; voltage levels vary by model—use factory pin‑out for exact values
Diagnostic algorithm
- Verify the code: connect a capable scan tool, read P1836 and any related codes, note freeze‑frame and live data.
- Visual inspection: inspect the kick‑down switch, cable/linkage area, connectors, and wiring for obvious damage, corrosion, or disconnection.
- Identify pins: locate service manual wiring diagram and pin‑out for the kick‑down switch and TCM connector.
- Backprobe and observe: with ignition ON (engine running if safe), backprobe the switch connector and observe live data while slowly and fully depressing the throttle; note if the switch changes state.
- Continuity test: remove connector, measure resistance across switch terminals while actuating. If open when it should be closed (or never changes), the switch is faulty.
- Wiring test: check continuity between the switch connector and the TCM input pin. Repair any open circuits, broken wires, or poor splices.
- Connector/ground check: clean and repair corroded pins; ensure proper grounds and 12V/5V reference (if applicable) are present at the connector.
- Substitute/replace: if wiring and connector are good but switch does not operate, replace the kick‑down switch assembly.
- Re‑test: clear codes, perform a test drive with scan tool monitoring the kick‑down input and transmission operation. Confirm code does not return.
- If problem persists after repairs, test/replace TCM input circuit or consult factory diagnostics for module testing.
Likely causes
- Damaged or disconnected harness/connector at the kick‑down switch
- Failed switch contacts (open when they should be closed)
- Corrosion or bent pins at switch connector
- Wiring short to open at harness splice or through-body routing
- Faulty TCM input circuit (verify after wiring and switch tests)
Fault status
Status
Kick‑Down Switch Circuit Open — TCM reports open/no signal from kick‑down switch input. May prevent commanded downshifts during heavy throttle. Inspect switch, wiring and connectors; verify TCM input.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Code
P1836
CHEVROLET
P — Powertrain
Kick-Down Switch Failed Open
AI status
Completed
Completed
100%
Causes
- Open or broken wiring between kick‑down switch and TCM/PCM
- Corroded/loose connector at the kick‑down switch or at the TCM
- Failed kick‑down (throttle) switch or internal contacts open
- Aftermarket throttle or transmission hardware interfering with switch
- TCM/PCM input circuit fault (less common)
- Mechanical damage where harness passes (chafing, pinched, rod/pedal linkage damage)
Symptoms
- Check Engine/Transmission light or MIL illuminated
- No kick‑down/downshift under wide‑open throttle or delayed downshift
- Reduced performance or hesitation during hard acceleration
- Transmission may stay in a higher gear or shift improperly
- Stored DTC P1836 (kick‑down switch open)
What to check
- Read and record all stored codes and freeze‑frame data with a scan tool
- Check live data for kick‑down switch status while operating throttle
- Visually inspect switch, connectors and wiring for damage or corrosion
- Backprobe the switch connector and observe signal while actuating throttle
- Perform continuity and resistance checks on the switch and wiring to TCM
- Wiggle wiring harness while observing live data to find intermittent opens
Signal parameters
- Expected: switch toggles between two states (closed/ground or open/high) when throttle/kick‑down is actuated; exact polarity depends on vehicle — consult service manual
- Open condition: infinite resistance (open circuit) between switch terminals or no change in voltage when actuated
- Closed condition: low resistance (near 0 ohms) or a defined reference voltage/ground shown at TCM input when actuated
- Typical test voltages: switch may switch a 5V reference or a ground return; voltage levels vary by model—use factory pin‑out for exact values
Diagnostic algorithm
- Verify the code: connect a capable scan tool, read P1836 and any related codes, note freeze‑frame and live data.
- Visual inspection: inspect the kick‑down switch, cable/linkage area, connectors, and wiring for obvious damage, corrosion, or disconnection.
- Identify pins: locate service manual wiring diagram and pin‑out for the kick‑down switch and TCM connector.
- Backprobe and observe: with ignition ON (engine running if safe), backprobe the switch connector and observe live data while slowly and fully depressing the throttle; note if the switch changes state.
- Continuity test: remove connector, measure resistance across switch terminals while actuating. If open when it should be closed (or never changes), the switch is faulty.
- Wiring test: check continuity between the switch connector and the TCM input pin. Repair any open circuits, broken wires, or poor splices.
- Connector/ground check: clean and repair corroded pins; ensure proper grounds and 12V/5V reference (if applicable) are present at the connector.
- Substitute/replace: if wiring and connector are good but switch does not operate, replace the kick‑down switch assembly.
- Re‑test: clear codes, perform a test drive with scan tool monitoring the kick‑down input and transmission operation. Confirm code does not return.
- If problem persists after repairs, test/replace TCM input circuit or consult factory diagnostics for module testing.
Likely causes
- Damaged or disconnected harness/connector at the kick‑down switch
- Failed switch contacts (open when they should be closed)
- Corrosion or bent pins at switch connector
- Wiring short to open at harness splice or through-body routing
- Faulty TCM input circuit (verify after wiring and switch tests)
Fault status
Status
Kick‑Down Switch Circuit Open — TCM reports open/no signal from kick‑down switch input. May prevent commanded downshifts during heavy throttle. Inspect switch, wiring and connectors; verify TCM input.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Similar codes
Repair manuals
Manual library for CHEVROLET
181
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CHEVROLET: 2020
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Code
P1836
GM
P — Powertrain
Kick-Down Switch Failed Open
AI status
Completed
Completed
100%
Causes
- Open or broken wiring between kick‑down switch and TCM/PCM
- Corroded/loose connector at the kick‑down switch or at the TCM
- Failed kick‑down (throttle) switch or internal contacts open
- Aftermarket throttle or transmission hardware interfering with switch
- TCM/PCM input circuit fault (less common)
- Mechanical damage where harness passes (chafing, pinched, rod/pedal linkage damage)
Symptoms
- Check Engine/Transmission light or MIL illuminated
- No kick‑down/downshift under wide‑open throttle or delayed downshift
- Reduced performance or hesitation during hard acceleration
- Transmission may stay in a higher gear or shift improperly
- Stored DTC P1836 (kick‑down switch open)
What to check
- Read and record all stored codes and freeze‑frame data with a scan tool
- Check live data for kick‑down switch status while operating throttle
- Visually inspect switch, connectors and wiring for damage or corrosion
- Backprobe the switch connector and observe signal while actuating throttle
- Perform continuity and resistance checks on the switch and wiring to TCM
- Wiggle wiring harness while observing live data to find intermittent opens
Signal parameters
- Expected: switch toggles between two states (closed/ground or open/high) when throttle/kick‑down is actuated; exact polarity depends on vehicle — consult service manual
- Open condition: infinite resistance (open circuit) between switch terminals or no change in voltage when actuated
- Closed condition: low resistance (near 0 ohms) or a defined reference voltage/ground shown at TCM input when actuated
- Typical test voltages: switch may switch a 5V reference or a ground return; voltage levels vary by model—use factory pin‑out for exact values
Diagnostic algorithm
- Verify the code: connect a capable scan tool, read P1836 and any related codes, note freeze‑frame and live data.
- Visual inspection: inspect the kick‑down switch, cable/linkage area, connectors, and wiring for obvious damage, corrosion, or disconnection.
- Identify pins: locate service manual wiring diagram and pin‑out for the kick‑down switch and TCM connector.
- Backprobe and observe: with ignition ON (engine running if safe), backprobe the switch connector and observe live data while slowly and fully depressing the throttle; note if the switch changes state.
- Continuity test: remove connector, measure resistance across switch terminals while actuating. If open when it should be closed (or never changes), the switch is faulty.
- Wiring test: check continuity between the switch connector and the TCM input pin. Repair any open circuits, broken wires, or poor splices.
- Connector/ground check: clean and repair corroded pins; ensure proper grounds and 12V/5V reference (if applicable) are present at the connector.
- Substitute/replace: if wiring and connector are good but switch does not operate, replace the kick‑down switch assembly.
- Re‑test: clear codes, perform a test drive with scan tool monitoring the kick‑down input and transmission operation. Confirm code does not return.
- If problem persists after repairs, test/replace TCM input circuit or consult factory diagnostics for module testing.
Likely causes
- Damaged or disconnected harness/connector at the kick‑down switch
- Failed switch contacts (open when they should be closed)
- Corrosion or bent pins at switch connector
- Wiring short to open at harness splice or through-body routing
- Faulty TCM input circuit (verify after wiring and switch tests)
Fault status
Status
Kick‑Down Switch Circuit Open — TCM reports open/no signal from kick‑down switch input. May prevent commanded downshifts during heavy throttle. Inspect switch, wiring and connectors; verify TCM input.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Similar codes
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Code
P1836
GMC
P — Powertrain
Kick-Down Switch Failed Open
AI status
Completed
Completed
100%
Causes
- Open or broken wiring between kick‑down switch and TCM/PCM
- Corroded/loose connector at the kick‑down switch or at the TCM
- Failed kick‑down (throttle) switch or internal contacts open
- Aftermarket throttle or transmission hardware interfering with switch
- TCM/PCM input circuit fault (less common)
- Mechanical damage where harness passes (chafing, pinched, rod/pedal linkage damage)
Symptoms
- Check Engine/Transmission light or MIL illuminated
- No kick‑down/downshift under wide‑open throttle or delayed downshift
- Reduced performance or hesitation during hard acceleration
- Transmission may stay in a higher gear or shift improperly
- Stored DTC P1836 (kick‑down switch open)
What to check
- Read and record all stored codes and freeze‑frame data with a scan tool
- Check live data for kick‑down switch status while operating throttle
- Visually inspect switch, connectors and wiring for damage or corrosion
- Backprobe the switch connector and observe signal while actuating throttle
- Perform continuity and resistance checks on the switch and wiring to TCM
- Wiggle wiring harness while observing live data to find intermittent opens
Signal parameters
- Expected: switch toggles between two states (closed/ground or open/high) when throttle/kick‑down is actuated; exact polarity depends on vehicle — consult service manual
- Open condition: infinite resistance (open circuit) between switch terminals or no change in voltage when actuated
- Closed condition: low resistance (near 0 ohms) or a defined reference voltage/ground shown at TCM input when actuated
- Typical test voltages: switch may switch a 5V reference or a ground return; voltage levels vary by model—use factory pin‑out for exact values
Diagnostic algorithm
- Verify the code: connect a capable scan tool, read P1836 and any related codes, note freeze‑frame and live data.
- Visual inspection: inspect the kick‑down switch, cable/linkage area, connectors, and wiring for obvious damage, corrosion, or disconnection.
- Identify pins: locate service manual wiring diagram and pin‑out for the kick‑down switch and TCM connector.
- Backprobe and observe: with ignition ON (engine running if safe), backprobe the switch connector and observe live data while slowly and fully depressing the throttle; note if the switch changes state.
- Continuity test: remove connector, measure resistance across switch terminals while actuating. If open when it should be closed (or never changes), the switch is faulty.
- Wiring test: check continuity between the switch connector and the TCM input pin. Repair any open circuits, broken wires, or poor splices.
- Connector/ground check: clean and repair corroded pins; ensure proper grounds and 12V/5V reference (if applicable) are present at the connector.
- Substitute/replace: if wiring and connector are good but switch does not operate, replace the kick‑down switch assembly.
- Re‑test: clear codes, perform a test drive with scan tool monitoring the kick‑down input and transmission operation. Confirm code does not return.
- If problem persists after repairs, test/replace TCM input circuit or consult factory diagnostics for module testing.
Likely causes
- Damaged or disconnected harness/connector at the kick‑down switch
- Failed switch contacts (open when they should be closed)
- Corrosion or bent pins at switch connector
- Wiring short to open at harness splice or through-body routing
- Faulty TCM input circuit (verify after wiring and switch tests)
Fault status
Status
Kick‑Down Switch Circuit Open — TCM reports open/no signal from kick‑down switch input. May prevent commanded downshifts during heavy throttle. Inspect switch, wiring and connectors; verify TCM input.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Code
P1836
HUMMER
P — Powertrain
Kick-Down Switch Failed Open
AI status
Completed
Completed
100%
Causes
- Open or broken wiring between kick‑down switch and TCM/PCM
- Corroded/loose connector at the kick‑down switch or at the TCM
- Failed kick‑down (throttle) switch or internal contacts open
- Aftermarket throttle or transmission hardware interfering with switch
- TCM/PCM input circuit fault (less common)
- Mechanical damage where harness passes (chafing, pinched, rod/pedal linkage damage)
Symptoms
- Check Engine/Transmission light or MIL illuminated
- No kick‑down/downshift under wide‑open throttle or delayed downshift
- Reduced performance or hesitation during hard acceleration
- Transmission may stay in a higher gear or shift improperly
- Stored DTC P1836 (kick‑down switch open)
What to check
- Read and record all stored codes and freeze‑frame data with a scan tool
- Check live data for kick‑down switch status while operating throttle
- Visually inspect switch, connectors and wiring for damage or corrosion
- Backprobe the switch connector and observe signal while actuating throttle
- Perform continuity and resistance checks on the switch and wiring to TCM
- Wiggle wiring harness while observing live data to find intermittent opens
Signal parameters
- Expected: switch toggles between two states (closed/ground or open/high) when throttle/kick‑down is actuated; exact polarity depends on vehicle — consult service manual
- Open condition: infinite resistance (open circuit) between switch terminals or no change in voltage when actuated
- Closed condition: low resistance (near 0 ohms) or a defined reference voltage/ground shown at TCM input when actuated
- Typical test voltages: switch may switch a 5V reference or a ground return; voltage levels vary by model—use factory pin‑out for exact values
Diagnostic algorithm
- Verify the code: connect a capable scan tool, read P1836 and any related codes, note freeze‑frame and live data.
- Visual inspection: inspect the kick‑down switch, cable/linkage area, connectors, and wiring for obvious damage, corrosion, or disconnection.
- Identify pins: locate service manual wiring diagram and pin‑out for the kick‑down switch and TCM connector.
- Backprobe and observe: with ignition ON (engine running if safe), backprobe the switch connector and observe live data while slowly and fully depressing the throttle; note if the switch changes state.
- Continuity test: remove connector, measure resistance across switch terminals while actuating. If open when it should be closed (or never changes), the switch is faulty.
- Wiring test: check continuity between the switch connector and the TCM input pin. Repair any open circuits, broken wires, or poor splices.
- Connector/ground check: clean and repair corroded pins; ensure proper grounds and 12V/5V reference (if applicable) are present at the connector.
- Substitute/replace: if wiring and connector are good but switch does not operate, replace the kick‑down switch assembly.
- Re‑test: clear codes, perform a test drive with scan tool monitoring the kick‑down input and transmission operation. Confirm code does not return.
- If problem persists after repairs, test/replace TCM input circuit or consult factory diagnostics for module testing.
Likely causes
- Damaged or disconnected harness/connector at the kick‑down switch
- Failed switch contacts (open when they should be closed)
- Corrosion or bent pins at switch connector
- Wiring short to open at harness splice or through-body routing
- Faulty TCM input circuit (verify after wiring and switch tests)
Fault status
Status
Kick‑Down Switch Circuit Open — TCM reports open/no signal from kick‑down switch input. May prevent commanded downshifts during heavy throttle. Inspect switch, wiring and connectors; verify TCM input.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Similar codes
Repair manuals
Manual library for HUMMER
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Code
P1836
MITSUBISHI
P — Powertrain
Pressure control valve open
AI status
Completed
Completed
100%
Causes
- Open or broken wiring between kick‑down switch and TCM/PCM
- Corroded/loose connector at the kick‑down switch or at the TCM
- Failed kick‑down (throttle) switch or internal contacts open
- Aftermarket throttle or transmission hardware interfering with switch
- TCM/PCM input circuit fault (less common)
- Mechanical damage where harness passes (chafing, pinched, rod/pedal linkage damage)
Symptoms
- Check Engine/Transmission light or MIL illuminated
- No kick‑down/downshift under wide‑open throttle or delayed downshift
- Reduced performance or hesitation during hard acceleration
- Transmission may stay in a higher gear or shift improperly
- Stored DTC P1836 (kick‑down switch open)
What to check
- Read and record all stored codes and freeze‑frame data with a scan tool
- Check live data for kick‑down switch status while operating throttle
- Visually inspect switch, connectors and wiring for damage or corrosion
- Backprobe the switch connector and observe signal while actuating throttle
- Perform continuity and resistance checks on the switch and wiring to TCM
- Wiggle wiring harness while observing live data to find intermittent opens
Signal parameters
- Expected: switch toggles between two states (closed/ground or open/high) when throttle/kick‑down is actuated; exact polarity depends on vehicle — consult service manual
- Open condition: infinite resistance (open circuit) between switch terminals or no change in voltage when actuated
- Closed condition: low resistance (near 0 ohms) or a defined reference voltage/ground shown at TCM input when actuated
- Typical test voltages: switch may switch a 5V reference or a ground return; voltage levels vary by model—use factory pin‑out for exact values
Diagnostic algorithm
- Verify the code: connect a capable scan tool, read P1836 and any related codes, note freeze‑frame and live data.
- Visual inspection: inspect the kick‑down switch, cable/linkage area, connectors, and wiring for obvious damage, corrosion, or disconnection.
- Identify pins: locate service manual wiring diagram and pin‑out for the kick‑down switch and TCM connector.
- Backprobe and observe: with ignition ON (engine running if safe), backprobe the switch connector and observe live data while slowly and fully depressing the throttle; note if the switch changes state.
- Continuity test: remove connector, measure resistance across switch terminals while actuating. If open when it should be closed (or never changes), the switch is faulty.
- Wiring test: check continuity between the switch connector and the TCM input pin. Repair any open circuits, broken wires, or poor splices.
- Connector/ground check: clean and repair corroded pins; ensure proper grounds and 12V/5V reference (if applicable) are present at the connector.
- Substitute/replace: if wiring and connector are good but switch does not operate, replace the kick‑down switch assembly.
- Re‑test: clear codes, perform a test drive with scan tool monitoring the kick‑down input and transmission operation. Confirm code does not return.
- If problem persists after repairs, test/replace TCM input circuit or consult factory diagnostics for module testing.
Likely causes
- Damaged or disconnected harness/connector at the kick‑down switch
- Failed switch contacts (open when they should be closed)
- Corrosion or bent pins at switch connector
- Wiring short to open at harness splice or through-body routing
- Faulty TCM input circuit (verify after wiring and switch tests)
Fault status
Status
Kick‑Down Switch Circuit Open — TCM reports open/no signal from kick‑down switch input. May prevent commanded downshifts during heavy throttle. Inspect switch, wiring and connectors; verify TCM input.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Similar codes
Repair manuals
Manual library for MITSUBISHI
406
Browse 406 MITSUBISHI manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.
MITSUBISHI
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Outlander
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- Black Edition, AWD
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- Black Edition, FWD
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- ES, AWD
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- ES, FWD
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- Platinum Edition
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- SE, AWD
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- SE, FWD
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- ES, AWD
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- ES, FWD
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- Ralliart
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- SE, AWD
- SE, FWD
- SE, FWD
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- SEL, AWD
- SEL, FWD
- SEL, FWD
- SEL Black Edition, AWD
- SEL Black Edition, AWD
- SEL Black Edition, FWD
- SEL Black Edition, FWD
- SE Special Edition, AWD
- SE Special Edition, AWD
- SE Special Edition, FWD
- SE Special Edition, FWD
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Outlander PHEV
-
MITSUBISHI: 2022
-
Eclipse Cross
- ES, AWD
- ES, AWD
- ES, FWD
- ES, FWD
- LE, AWD
- LE, AWD
- LE, FWD
- LE, FWD
- SE, AWD
- SE, AWD
- SE, FWD
- SE, FWD
- SEL, AWD
- SEL, AWD
- SEL, FWD
- SEL, FWD
- SEL Special Edition, AWD
- SEL Special Edition, AWD
- SEL Special Edition, FWD
- SEL Special Edition, FWD
- SE Special Edition, AWD
- SE Special Edition, AWD
- SE Special Edition, FWD
- SE Special Edition, FWD
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-
MITSUBISHI: 2021
-
MITSUBISHI: 2020
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Code
P1836
OLDSMOBILE
P — Powertrain
Kick-Down Switch Failed Open
AI status
Completed
Completed
100%
Causes
- Open or broken wiring between kick‑down switch and TCM/PCM
- Corroded/loose connector at the kick‑down switch or at the TCM
- Failed kick‑down (throttle) switch or internal contacts open
- Aftermarket throttle or transmission hardware interfering with switch
- TCM/PCM input circuit fault (less common)
- Mechanical damage where harness passes (chafing, pinched, rod/pedal linkage damage)
Symptoms
- Check Engine/Transmission light or MIL illuminated
- No kick‑down/downshift under wide‑open throttle or delayed downshift
- Reduced performance or hesitation during hard acceleration
- Transmission may stay in a higher gear or shift improperly
- Stored DTC P1836 (kick‑down switch open)
What to check
- Read and record all stored codes and freeze‑frame data with a scan tool
- Check live data for kick‑down switch status while operating throttle
- Visually inspect switch, connectors and wiring for damage or corrosion
- Backprobe the switch connector and observe signal while actuating throttle
- Perform continuity and resistance checks on the switch and wiring to TCM
- Wiggle wiring harness while observing live data to find intermittent opens
Signal parameters
- Expected: switch toggles between two states (closed/ground or open/high) when throttle/kick‑down is actuated; exact polarity depends on vehicle — consult service manual
- Open condition: infinite resistance (open circuit) between switch terminals or no change in voltage when actuated
- Closed condition: low resistance (near 0 ohms) or a defined reference voltage/ground shown at TCM input when actuated
- Typical test voltages: switch may switch a 5V reference or a ground return; voltage levels vary by model—use factory pin‑out for exact values
Diagnostic algorithm
- Verify the code: connect a capable scan tool, read P1836 and any related codes, note freeze‑frame and live data.
- Visual inspection: inspect the kick‑down switch, cable/linkage area, connectors, and wiring for obvious damage, corrosion, or disconnection.
- Identify pins: locate service manual wiring diagram and pin‑out for the kick‑down switch and TCM connector.
- Backprobe and observe: with ignition ON (engine running if safe), backprobe the switch connector and observe live data while slowly and fully depressing the throttle; note if the switch changes state.
- Continuity test: remove connector, measure resistance across switch terminals while actuating. If open when it should be closed (or never changes), the switch is faulty.
- Wiring test: check continuity between the switch connector and the TCM input pin. Repair any open circuits, broken wires, or poor splices.
- Connector/ground check: clean and repair corroded pins; ensure proper grounds and 12V/5V reference (if applicable) are present at the connector.
- Substitute/replace: if wiring and connector are good but switch does not operate, replace the kick‑down switch assembly.
- Re‑test: clear codes, perform a test drive with scan tool monitoring the kick‑down input and transmission operation. Confirm code does not return.
- If problem persists after repairs, test/replace TCM input circuit or consult factory diagnostics for module testing.
Likely causes
- Damaged or disconnected harness/connector at the kick‑down switch
- Failed switch contacts (open when they should be closed)
- Corrosion or bent pins at switch connector
- Wiring short to open at harness splice or through-body routing
- Faulty TCM input circuit (verify after wiring and switch tests)
Fault status
Status
Kick‑Down Switch Circuit Open — TCM reports open/no signal from kick‑down switch input. May prevent commanded downshifts during heavy throttle. Inspect switch, wiring and connectors; verify TCM input.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Code
P1836
Other
P — Powertrain
Transmission Transfer Case Front Shaft Speed Sensor Circuit Failure
AI status
Completed
Completed
100%
Causes
- Open or broken wiring between kick‑down switch and TCM/PCM
- Corroded/loose connector at the kick‑down switch or at the TCM
- Failed kick‑down (throttle) switch or internal contacts open
- Aftermarket throttle or transmission hardware interfering with switch
- TCM/PCM input circuit fault (less common)
- Mechanical damage where harness passes (chafing, pinched, rod/pedal linkage damage)
Symptoms
- Check Engine/Transmission light or MIL illuminated
- No kick‑down/downshift under wide‑open throttle or delayed downshift
- Reduced performance or hesitation during hard acceleration
- Transmission may stay in a higher gear or shift improperly
- Stored DTC P1836 (kick‑down switch open)
What to check
- Read and record all stored codes and freeze‑frame data with a scan tool
- Check live data for kick‑down switch status while operating throttle
- Visually inspect switch, connectors and wiring for damage or corrosion
- Backprobe the switch connector and observe signal while actuating throttle
- Perform continuity and resistance checks on the switch and wiring to TCM
- Wiggle wiring harness while observing live data to find intermittent opens
Signal parameters
- Expected: switch toggles between two states (closed/ground or open/high) when throttle/kick‑down is actuated; exact polarity depends on vehicle — consult service manual
- Open condition: infinite resistance (open circuit) between switch terminals or no change in voltage when actuated
- Closed condition: low resistance (near 0 ohms) or a defined reference voltage/ground shown at TCM input when actuated
- Typical test voltages: switch may switch a 5V reference or a ground return; voltage levels vary by model—use factory pin‑out for exact values
Diagnostic algorithm
- Verify the code: connect a capable scan tool, read P1836 and any related codes, note freeze‑frame and live data.
- Visual inspection: inspect the kick‑down switch, cable/linkage area, connectors, and wiring for obvious damage, corrosion, or disconnection.
- Identify pins: locate service manual wiring diagram and pin‑out for the kick‑down switch and TCM connector.
- Backprobe and observe: with ignition ON (engine running if safe), backprobe the switch connector and observe live data while slowly and fully depressing the throttle; note if the switch changes state.
- Continuity test: remove connector, measure resistance across switch terminals while actuating. If open when it should be closed (or never changes), the switch is faulty.
- Wiring test: check continuity between the switch connector and the TCM input pin. Repair any open circuits, broken wires, or poor splices.
- Connector/ground check: clean and repair corroded pins; ensure proper grounds and 12V/5V reference (if applicable) are present at the connector.
- Substitute/replace: if wiring and connector are good but switch does not operate, replace the kick‑down switch assembly.
- Re‑test: clear codes, perform a test drive with scan tool monitoring the kick‑down input and transmission operation. Confirm code does not return.
- If problem persists after repairs, test/replace TCM input circuit or consult factory diagnostics for module testing.
Likely causes
- Damaged or disconnected harness/connector at the kick‑down switch
- Failed switch contacts (open when they should be closed)
- Corrosion or bent pins at switch connector
- Wiring short to open at harness splice or through-body routing
- Faulty TCM input circuit (verify after wiring and switch tests)
Fault status
Status
Kick‑Down Switch Circuit Open — TCM reports open/no signal from kick‑down switch input. May prevent commanded downshifts during heavy throttle. Inspect switch, wiring and connectors; verify TCM input.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Similar codes
Repair manuals
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Code
P1836
SATURN
P — Powertrain
Kick-Down Switch Failed Open
AI status
Completed
Completed
100%
Causes
- Open or broken wiring between kick‑down switch and TCM/PCM
- Corroded/loose connector at the kick‑down switch or at the TCM
- Failed kick‑down (throttle) switch or internal contacts open
- Aftermarket throttle or transmission hardware interfering with switch
- TCM/PCM input circuit fault (less common)
- Mechanical damage where harness passes (chafing, pinched, rod/pedal linkage damage)
Symptoms
- Check Engine/Transmission light or MIL illuminated
- No kick‑down/downshift under wide‑open throttle or delayed downshift
- Reduced performance or hesitation during hard acceleration
- Transmission may stay in a higher gear or shift improperly
- Stored DTC P1836 (kick‑down switch open)
What to check
- Read and record all stored codes and freeze‑frame data with a scan tool
- Check live data for kick‑down switch status while operating throttle
- Visually inspect switch, connectors and wiring for damage or corrosion
- Backprobe the switch connector and observe signal while actuating throttle
- Perform continuity and resistance checks on the switch and wiring to TCM
- Wiggle wiring harness while observing live data to find intermittent opens
Signal parameters
- Expected: switch toggles between two states (closed/ground or open/high) when throttle/kick‑down is actuated; exact polarity depends on vehicle — consult service manual
- Open condition: infinite resistance (open circuit) between switch terminals or no change in voltage when actuated
- Closed condition: low resistance (near 0 ohms) or a defined reference voltage/ground shown at TCM input when actuated
- Typical test voltages: switch may switch a 5V reference or a ground return; voltage levels vary by model—use factory pin‑out for exact values
Diagnostic algorithm
- Verify the code: connect a capable scan tool, read P1836 and any related codes, note freeze‑frame and live data.
- Visual inspection: inspect the kick‑down switch, cable/linkage area, connectors, and wiring for obvious damage, corrosion, or disconnection.
- Identify pins: locate service manual wiring diagram and pin‑out for the kick‑down switch and TCM connector.
- Backprobe and observe: with ignition ON (engine running if safe), backprobe the switch connector and observe live data while slowly and fully depressing the throttle; note if the switch changes state.
- Continuity test: remove connector, measure resistance across switch terminals while actuating. If open when it should be closed (or never changes), the switch is faulty.
- Wiring test: check continuity between the switch connector and the TCM input pin. Repair any open circuits, broken wires, or poor splices.
- Connector/ground check: clean and repair corroded pins; ensure proper grounds and 12V/5V reference (if applicable) are present at the connector.
- Substitute/replace: if wiring and connector are good but switch does not operate, replace the kick‑down switch assembly.
- Re‑test: clear codes, perform a test drive with scan tool monitoring the kick‑down input and transmission operation. Confirm code does not return.
- If problem persists after repairs, test/replace TCM input circuit or consult factory diagnostics for module testing.
Likely causes
- Damaged or disconnected harness/connector at the kick‑down switch
- Failed switch contacts (open when they should be closed)
- Corrosion or bent pins at switch connector
- Wiring short to open at harness splice or through-body routing
- Faulty TCM input circuit (verify after wiring and switch tests)
Fault status
Status
Kick‑Down Switch Circuit Open — TCM reports open/no signal from kick‑down switch input. May prevent commanded downshifts during heavy throttle. Inspect switch, wiring and connectors; verify TCM input.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Similar codes
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