Detroit DD13 EPA10 (2010-13) Fault Code: SPN 1071 FMI 5 (MCM, CPC) Fan Stage 2 Circuit Failed Open
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.
![JOHN DEERE PARTS ADVISOR & HITACHI 2.24.2 [2023.07] - ECUFORCETRUCK EPC](https://www.ecuforcetruck.com/wp-content/uploads/2023/09/1-300x300.png)
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