OBD-II code · Powertrain (generic, extended)
P2ABC Wastegate Position Sensor B Circuit High
Voltage on the wastegate position sensor B signal line is above the expected window. Wire shorted to B+ or sensor open.
Is it safe to drive with P2ABC?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySignal wire shorted to B+
- PossibleOpen position sensor
- Less likelyConnector pins corroded - high contact resistance
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Likely to fail
- Parts involved
- Wastegate Position Sensor B, Wiring Harness, Ecm
Related codes
- P2AB9Wastegate Position Sensor A Circuit High
- P2ABAWastegate Position Sensor B Circuit
- P2ABBWastegate Position Sensor B Circuit Low
- P2ABDTurbocharger/Supercharger Wastegate Actuator A Driver Current/Temperature Too High
- P2ABETurbocharger/Supercharger Wastegate Actuator B Driver Current/Temperature Too High
- P2ABFIntake Air O2 Sensor Reference Voltage Circuit/Open Bank 1
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.