OBD-II code · Powertrain (generic)
P0229 Throttle/Pedal Position Sensor/Switch C Circuit Intermittent
Intermittent signal from throttle position sensor C. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
Is it safe to drive with P0229?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyConnector loose or corroded
- Less likelyConnector with intermittent contact under vibration
- Less likelyHarness routed against vibrating component
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
- 0.5–3 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Throttle Position Sensor C, Sensor Wiring
Related codes
- P0224Throttle/Pedal Position Sensor/Switch B Circuit Intermittent
- P2134Throttle/Pedal Position Sensor/Switch F Circuit Intermittent
- P0226Throttle/Pedal Position Sensor C Circuit Range/Performance
- P0227Throttle/Pedal Position Sensor/Switch C Circuit Low
- P0228Throttle/Pedal Position Sensor/Switch C Circuit High
- P022ACharge Air Cooler Bypass Control A Circuit/Open
- P022BCharge Air Cooler Bypass Control A Circuit Low
- P022CCharge Air Cooler Bypass Control A Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.