OBD-II code · Powertrain (generic, extended)
P2AB9 Wastegate Position Sensor A Circuit High
Voltage on the wastegate position sensor A signal line is above the expected window. Wire shorted to B+ or sensor open.
Is it safe to drive with P2AB9?
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 A, Wiring Harness, Ecm
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.