Powertrain Definition only Lights the check engine lamp

P2CB0: Charge Air Cooler Coolant Pump B Performance

Standardized SAE J2012 code · P2Cxx codes

What does P2CB0 mean?

Charge air cooler coolant pump B reports a performance 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 Pump output degraded with age
  • Medium Air pocket in coolant loop

Likelihood is a general estimate across vehicles; your make and model may differ.

Add your car to see reports of P2CB0 on the same make and model first.

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