Powertrain
Definition only
Lights the check engine lamp
P2CAF: Charge Air Cooler Coolant Pump B Control Circuit High
Standardized SAE J2012 code · P2Cxx codes
What does P2CAF mean?
Charge air cooler coolant pump B reports a control circuit high condition. CAC coolant loop circulation is impaired.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Common causes
- High Control wire shorted to B+
- Medium Open pump motor
- Low Connector pins corroded - high contact resistance
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P2CAF on the same make and model first.
P2CAF in the community
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