Throttle/Pedal Position Sensor "D" Circuit Low
Throttle/Pedal Position Sensor "D" Circuit Low: the signal voltage is below the expected range. Often a short to ground or high resistance in the wiring.
Affected components
- Accelerator pedal sensor
- Accelerator pedal wiring
Common causes
- High likelihood: Pedal sensor track worn
- Medium likelihood: Signal wire shorted to ground
- Low likelihood: Connector pins corroded - high contact resistance
Possible symptoms
- Check engine light on
- Reduced throttle response, possible limp mode
- Hesitation or surging
- Idle too high or too low
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
- Reduced-power or limp mode may occur
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.