DESCRIPTION:
Fan circuit failed open.
MONITORED PARAMETER:
Fan control solenoid.
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Always enabled
TYPICAL DURATION:
2 seconds
DASH LAMPS:
None
ENGINE REACTION:
None
VERIFICATION:
Ignition cycle
NOTE: If codes 647-5, 1072-5, or 1071-5 active, repair wiring between pins 91 of the 120-pin MCM connector and the fan and the Jake brake Solenoids.
PROBABLE CAUSES:
1. Wiring between the fan control solenoid and 120-pin MCM connector.
2. Fan control solenoid failure.
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 1071 FMI 4 (MCM, CPC) Fan Stage 2 Circuit Failed Low
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 1071 FMI 3 (MCM, CPC) Fan Stage 2 Circuit Failed High
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 986 FMI 19 (CPC) Signal Source #1 or #2 is Erratic
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 986 FMI 13 (CPC) CPC has Received A J1939 CM1 Message
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 986 FMI 9 (CPC) CM1 Message is Missing
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 979 FMI 9 (CPC) PTO Message Not Received this Ignition Cycle
