What does code P245B mean?

DTC codes / P24xx · Auxiliary emission controls / P245B

P245BEGR Cooler Bypass Control Circuit Range or Performance Bank 1

P245B indicates that the engine control module has detected an out-of-range or performance issue with the EGR cooler bypass control circuit on bank 1. The circuit typically controls a valve that routes exhaust gas around the cooler to manage temperatures, and the module compares commanded state to actual feedback to set this code.

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.