P2BA2
Engine Coolant Pump Stuck/Stalled
The engine coolant pump is mechanically stuck or has stalled. Coolant circulation through the engine is severely reduced or absent.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: hard
Common causes
Ordered by how often each turns out to be the cause.
- Pump impeller jammed by debrisCommon
- Motor seizedPossible
Parts involved
- Engine Coolant Pump
- Engine Coolant Loop
P2BA2 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.