P2B67
Coolant Pump D Control Circuit Low
Coolant pump D reports a control circuit low 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.
- Control wire shorted to groundCommon
- Internal short in pump motorPossible
- Connector pins corroded - high contact resistanceLess likely
Parts involved
- Coolant Pump D
- Wiring Harness
- ECM
P2B67 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.