P2DF9
Coolant Pump E Stuck/Stalled
Coolant pump E reports a stuck/stalled condition. Coolant circulation through the affected loop cannot be commanded reliably.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Pump motor or driver faultCommon
- Wiring or connector faultPossible
Parts involved
- Coolant Pump E
- Wiring Harness
- ECM
P2DF9 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.