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DTC codes / P0Cxx · Hybrid propulsion / P0C27

P0C27Electric/Auxiliary Transmission Fluid Pump A Motor Current Low

P0C27 means the transmission control module (TCM) commanded the electric auxiliary transmission fluid pump on circuit A to run, but the current flowing through the pump motor stayed below the expected threshold. The computer sees an open or high-resistance path in the pump motor circuit, so the pump is not drawing the current it should.

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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