Powertrain
generic / SAE
P2129
Throttle/Pedal Position Sensor "D" Circuit Intermittent
The "D" channel of the throttle or pedal sensor produces an intermittent signal — typically marginal connector contacts.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number1 / 29
Possible causes
- Connector intermittent high
- Track D worn medium
- Harness routed against vibrating component 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: 80–400 €
- Estimated time: 0.3–1.5 h
- Component: accelerator pedal sensor
- Component: pedal sensor wiring
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012