DESCRIPTION:
The fault code sets when the motor control module (MCM) does not receive a message from the exhaust gas recirculation (EGR) valve actuator
MONITORED PARAMETER:
MCM communication from the EGR valve actuator.
TYPICAL ENABLING CONDITIONS:
Ignition on
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Always enabled
TYPICAL DURATION:
Two seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
None
VERIFICATION:
Ignition on
PROBABLE CAUSES:
1. If any other codes active, fix those first.
2. Wiring between the EGR valve actuator connector and the 120-pin ECM connection.
3. EGR valve actuator failure.
4. Failed MCM.
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