P2ABD
Turbocharger/Supercharger Wastegate Actuator A Driver Current/Temperature Too High
The output driver for the wastegate actuator A reports current or junction temperature above its protection threshold. Stalled actuator or short to ground.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: hard
Symptoms
- Check engine light on
- Significant power loss / limp mode
- Possible blue or black smoke from exhaust
- Whistling or hissing sound from intake
Common causes
Ordered by how often each turns out to be the cause.
- Wastegate actuator mechanically jammedCommon
- Control wire shorted to groundPossible
Parts involved
- Wastegate Actuator A
- ECM
P2ABD is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.