DTC P0403 - EGR A Control Circuit/Open
P0403 - EGR A CONTROL CIRCUIT/OPEN
| Description: | The exhaust gas recirculation (EGR) system is continuously monitored to check the four electric EGR motor coils, circuits, and the PCM for opens, shorts to voltage and ground. If a concern is detected, the EGR system is disabled and additional monitoring is suspended for the remainder of the drive until the next drive cycle. | ||
| Possible Causes: |
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| Diagnostic Aids: | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST KD . | ||