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DTC codes / P24xx · Auxiliary emission controls / P245C

P245CEGR Cooler Bypass Control Circuit Low Bank 1

P245C indicates that the powertrain control module has detected a low-voltage condition on the electrical circuit that controls the EGR cooler bypass valve on bank 1. The computer expects to see a certain voltage range when commanding the valve, but the signal wire is reading below the acceptable threshold, which points to a short to ground, an open circuit, or a faulty valve.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyIntermediate
AreaAuxiliary emission controls

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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