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 THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT
- Turn ignition switch OFF.
- Disconnect electric throttle control actuator harness connector.
- Disconnect ECM harness connector.
- Check the continuity between electric throttle control actuator harness connector and ECM harness connector.
Electric throttle control actuator ECM Continuity Connector Terminal Connector Terminal F50 6 F79 148 Existed 147 Not existed 5 148 Not existed 147 Existed - Also check harness for short to power and short to ground.
Is the inspection result normal?
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GO TO 2.
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Repair or replace error-detected parts.
- CHECK THROTTLE CONTROL MOTOR
Check the throttle control motor. Refer to Component Inspection .
Is the inspection result normal?
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INSPECTION END
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Replace electric throttle control actuator. 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.