DTC P0403 - EGR A Control Circuit/Open

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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:	Electric EGR stepper motor windings open Electric EGR connector not seated correctly EGRMC circuit open EGRMC circuit short to voltage EGRMC circuit short to ground
Diagnostic Aids:
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to PINPOINT TEST KD .