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DTC codes / P2Cxx · Hybrid propulsion / P2CBF

P2CBFPCV Heater "B" Control Circuit Low

The P2CBF code indicates that the powertrain control module has detected a low-voltage condition on the control circuit for the positive crankcase ventilation heater, specifically the 'B' circuit. This means the heater element is not receiving the expected voltage, which can prevent the PCV system from properly managing crankcase vapors in cold conditions.

SystemPowertrain
Code typeGeneric (all makes)
SeverityLow
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.

Running on fumes Free guides aren't free to make. Top up the tank. Any amount, one time. Fuel the Garage