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DTC codes / P2Cxx · Hybrid propulsion / P2CAE

P2CAECharge Air Cooler Coolant Pump B Control Circuit Low

P2CAE indicates that the powertrain control module (PCM) has detected a low-voltage condition on the control circuit for the charge air cooler coolant pump B. This pump circulates coolant through the air-to-liquid intercooler to cool the compressed intake air, and the low circuit voltage suggests a short to ground, an open circuit, or a faulty pump.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyIntermediate
AreaHybrid propulsion

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

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