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DTC codes / P25xx · Vehicle speed, idle control and auxiliary inputs / P25AE

P25AEPiston Cooling Oil Pressure Too Low

P25AE indicates that the engine control module has detected the piston cooling oil pressure is below the expected threshold for current operating conditions. The engine control module monitors a dedicated oil pressure sensor in the piston cooling circuit and sets this code when the signal indicates insufficient pressure to properly cool the pistons.

SystemPowertrain
Code typeGeneric (all makes)
SeverityHigh
Fix difficultyProfessional
AreaVehicle speed, idle control and auxiliary inputs

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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