Detroit DD16 GHG14 (2014-16) Fault Code: SPN 4375 FMI 5 (ACM) Diesel Exhaust Fluid Pump Circuit Failed Open

DESCRIPTION:
Diesel Exhaust Fluid (DEF) pump circuit failed open.

MONITORED PARAMETER:
DEF pump

TYPICAL ENABLING CONDITIONS:
Ignition on.

MONITOR SEQUENCE:
None

EXECUTION FREQUENCY:
Continuous when enabling conditions met.

TYPICAL DURATION:
Two seconds

DASH LAMPS:
1. MIL
2. CEL

ENGINE REACTION:
Derate 25%

VERIFICATION:
SCR ADS self-check.

PROBABLE CAUSES:
1. DEF pump harness connector/wiring.
2. DEF pump failure.

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