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Detroit DD16 EPA07 (2007-09) 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.