P2CAF
Charge Air Cooler Coolant Pump B Control Circuit High
Charge air cooler coolant pump B reports a control circuit high condition. CAC coolant loop circulation is impaired.
- 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 B+Common
- Open pump motorPossible
- Connector pins corroded - high contact resistanceLess likely
Parts involved
- Cac Coolant Pump B
- Wiring Harness
- ECM
P2CAF 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.