Pxxxx · Powertrain
P245A
EGR Cooler Bypass Control Circuit
ModeratePowertrain ECU
What it means
The EGR cooler bypass actuator is not responding to ECM commands. Common on EU diesels with EDC17 controllers.
Common causes
Listed in rough order of frequency. Verify with vehicle-specific service info before parts replacement.
- 01Failed EGR cooler bypass actuator motor
- 02Carboned-up EGR bypass valve
- 03Wiring fault to the actuator
- 04ECM software calibration issue (sometimes fixed by reflash)
Affected systems
ECUs and subsystems that report or are affected by this code.
Engine Control Module (Bosch EDC17 family)
Related ECU variants we cover
P245A commonly appears on these variants in our patch catalog. Each links to the full coverage detail.
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