OBD-II code · Powertrain (generic, extended)
P2ABB Wastegate Position Sensor B Circuit Low
Voltage on the wastegate position sensor B signal line is below the expected window. Wire shorted to ground or sensor short.
Is it safe to drive with P2ABB?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySignal wire shorted to ground
- PossibleInternal sensor short
- 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
- P2AB8Wastegate Position Sensor A Circuit Low
- P2AB9Wastegate Position Sensor A Circuit High
- P2ABAWastegate Position Sensor B Circuit
- P2ABCWastegate Position Sensor B Circuit High
- P2ABDTurbocharger/Supercharger Wastegate Actuator A Driver Current/Temperature Too High
- P2ABETurbocharger/Supercharger Wastegate Actuator B Driver Current/Temperature Too High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.