OBD-II code · Powertrain (generic)
P0124 Throttle/Pedal Position Sensor "A" Circuit Intermittent
The TPS signal shows intermittent dropouts that do not stay outside threshold long enough to trigger P0122/P0123. Drive-by-wire systems are sensitive to this and may briefly enter limp-home mode each time.
Is it safe to drive with P0124?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyLoose or oxidised connector
- PossibleSensor track worn at one spot (older potentiometer-type)
- Less likelyConnector with intermittent contact under vibration
Symptoms
- Check engine light on
- Reduced throttle response, possible limp mode
- Hesitation or surging
- Idle too high or too low
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2.5 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Throttle Position Sensor, Throttle Position Sensor Wiring
Related codes
- P2126Throttle/Pedal Position Sensor "C" Circuit Intermittent
- P2129Throttle/Pedal Position Sensor "D" Circuit Intermittent
- P0121Throttle/Pedal Position Sensor "A" Range/Performance
- P0122Throttle/Pedal Position Sensor "A" Low Input
- P0123Throttle/Pedal Position Sensor "A" High Input
- P0125Insufficient Coolant Temperature for Closed Loop Fuel Control
- P0126Insufficient Coolant Temperature for Stable Operation
- P0127Intake Air Temperature Too High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.