Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnosis Procedure
- CHECK APP SENSOR 1 POWER SUPPLY
- Turn ignition switch OFF.
- Disconnect accelerator pedal position (APP) sensor harness connector.
- Turn ignition switch ON.
- Check the voltage between APP sensor harness connector and ground.
+ - Voltage (Approx.) APP sensor Connector Terminal E101 4 Ground 5 V Is the inspection result normal?
YES: GO TO 3.
NO: GO TO 2.
- CHECK APP SENSOR 1 POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between APP sensor harness connector and ECM harness connector.
+ - Continuity APP sensor ECM Connector Terminal Connector Terminal E101 4 E18 101 Existed - Also check harness for short to ground.
Is the inspection result normal?
YES: Perform the trouble diagnosis for power supply circuit.
NO: Repair or replace error-detected parts.
- CHECK APP SENSOR 2 POWER SUPPLY
Check the voltage between APP sensor harness connector and ground.
+ - Voltage (Approx.) APP sensor Connector Terminal E101 5 Ground 5 V Is the inspection result normal?
YES: GO TO 5.
NO: GO TO 4.
- CHECK SENSOR POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check harness connector for short to power and short to ground, between the following terminals.
ECM Sensor Connector Terminal Name Connector Terminal F25 39 FRP sensor F5 1 EOP sensor F43 3 Turbocharger boost sensor F75 1 F26 68 Battery current sensor F52 1 G sensor B32 3 72 CMP sensor F109 1 EVT control position sensor F110 1 E18 118 APP sensor 2 E101 5 Is inspection result normal?
YES: Perform the trouble diagnosis for power supply circuit.
NO: Repair or replace error-detected parts.
- CHECK APP SENSOR GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between APP sensor harness connector and ECM harness connector.
+ - Continuity APP sensor ECM Connector Terminal Connector Terminal E101 1 E18 120 Existed 2 105 - Also check harness for short to power.
Is the inspection result normal?
YES: GO TO 6.
NO: Repair or replace error-detected parts.
- CHECK APP SENSOR INPUT SIGNAL CIRCUIT
- Check the continuity between APP sensor harness connector and ECM harness connector.
+ - Continuity APP sensor ECM Connector Terminal Connector Terminal E101 3 E18 102 Existed 6 119 - Also check harness for short to ground and to power.
Is the inspection result normal?
YES: GO TO 7.
NO: Repair or replace error-detected parts
- Check the continuity between APP sensor harness connector and ECM harness connector.
- CHECK APP SENSOR
Check the APP sensor. Refer to "COMPONENT INSPECTION ".
Is the inspection result normal?
YES: Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".
NO: Replace accelerator pedal assembly. Refer to "EXPLODED VIEW ".
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.