Detroit DD15 GHG14 (2014-16) Fault Code: SPN 1072 FMI 4 (MCM) Jake Brake Stage 1 Circuit Failed Low
DESCRIPTION:
Jake Brake Stage 1 Circuit failed low.
MONITORED PARAMETER:
Jake solenoid
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Always enabled
TYPICAL DURATION:
Two seconds
DASH LAMPS:
1. MIL
2. CEL
VERIFICATION:
Engine idle: One minute.
PROBABLE CAUSES:
1. Short to ground between pin 13 of the front fuel injector valve cover harness connector and pin 66 of the 120-pin ECM connection.
2. Jake brake solenoid failure.
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