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
Accelerator Pedal Position (APP) module provides a voltage signal that changes relative to accelerator pedal position. Three sensors are located within APP module and are scaled differently.
DTC will set when the following conditions are present:
- Ignition voltage is greater than 6.4 volts.
- Engine speed is greater than 300 RPM.
- Difference between APP 2 and APP 1 is greater than .23 volt (PCM compares pre-scaled voltage - internal to PCM).
- Difference between APP 2 and APP 3 is greater than .50 volt (PCM compares pre-scaled voltage - internal to PCM).
- No in range faults for APP 1 or APP 3 (PCM checks for high and low voltage faults).
- Conditions are met for 2 seconds.
NO RELATED
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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.