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Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3511 FMI 3 (MCM) 3V Sensor Supply Bank 1 Circuit Failed High

DESCRIPTION:
3V sensor supply bank 1 circuit high voltage detected.

MONITORED PARAMETER:
Motor Control Module (MCM) 3V internal power supply.

TYPICAL ENABLING CONDITIONS:
Circuit voltage greater than 3.2 Volts.

MONITOR SEQUENCE:
None

EXECUTION FREQUENCY:
Always enabled

TYPICAL DURATION:
Two seconds

DASH LAMPS:
1. MIL
2. CEL

ENGINE REACTION:
None

VERIFICATION:
Engine Idle (One minute).

PROBABLE CAUSES:
Short to power on one of the following from the main 120-pin ECM connector:
1. Pin 29 – DOC outlet temperature sensor.
2. Pin 88 – DOC inlet temperature sensor, DOC outlet temperature sensor, DPF inlet temperature sensor, DPF outlet temperature sensor.

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