Detroit DD15 GHG14 (2014-16) Fault Code: SPN 677 FMI 5 (MCM) Engine Starter Relay Open Circuit
DESCRIPTION:
This fault sets when the MCM detects that there is an open on the engine starter relay circuit.
MONITORED PARAMETER:
Engine starter relay.
TYPICAL ENABLING CONDITIONS:
Key on
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Continuous when enabling conditions met.
TYPICAL DURATION:
Two seconds
DASH LAMPS:
1. MIL
2. CEL
3. None after MCM update
ENGINE REACTION:
No start
VERIFICATION:
Engine cranking
PROBABLE CAUSES:
1. Starter relay.
2. Starter relay wiring.
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