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.
Circuit Description
The Accelerator Pedal Position (APP) sensors are mounted on accelerator pedal/TAC module assembly. The are 3 individual APP sensors within one housing and 3 separate signal, ground and reference circuits are used which are contained with the Throttle Actuator Control (TAC) module. The APP sensor signal voltage increases as accelerator pedal is depressed. The signal circuit pulls to ground within the TAC module.
DTC will set when APP sensor No. 1 voltage is less than 0.68 volt or greater than 4.5 volts and conditions met for less than one second.
Use the Manual With the Right Hardware
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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.
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