Detroit DD16 GHG14 (2014-16) Fault Code: SPN 625 FMI 8 (MCM) Motor Control Module Powertrain Controller Area Network (PT-CAN) DM1 Message Not Received or has Stopped Arriving
DESCRIPTION:
DM1 message not received or has stopped arriving.
MONITORED PARAMETER:
CAN communication
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Always enabled
TYPICAL DURATION:
2 seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
None
NOTE: If there are any battery related faults, repair those first.
PROBABLE CAUSES:
1. If any engine components have been programmed recently and are inactive, clear then and test drive to see if they return.
2. Turn ignition off for 5 minutes (leave batteries connected) and turn back on to see if they went inactive.
3. Measure resistance across MCM 12-pin connector at pins 13 and 19. If less than 5 ohms, replace the Power Train CAN harness.
4. ACM Failure.
5. CPC Failure.
6. Wiring between the ACM, CPC, and MCM.
7. MCM Failure.
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