Powertrain
generic / SAE
P2123
Throttle/Pedal Position Sensor "D" Circuit High
Sensor "D" of the pedal pair reports a voltage above the valid window. Often a short to supply or an open ground at the connector.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number1 / 23
Possible causes
- Signal wire shorted to supply high
- Sensor ground open medium
- Connector pins corroded - high contact resistance low
Symptoms
- Check engine light on
- Reduced throttle response, possible limp mode
- Hesitation or surging
- Idle too high or too low
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 80–350 €
- Estimated time: 0.3–1.5 h
- Component: accelerator pedal sensor
- Component: accelerator pedal wiring
- MIL / check engine light
- emissions-relevant
- drive cycle required
- limp mode possible
Sources
References
sae:J2012