DTC P0403 - EGR A Control Circuit/Open
WARNING: This page does not describe the selected car, but rather 24 other vehicles, including the 2019 Lincoln Navigator, 2019 Lincoln Nautilus, 2019 Lincoln MKZ, 2019 Lincoln MKT, and 2019 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.
DTC DESCRIPTION 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 . | ||