Detroit DD13 EPA10 (2010-13) Fault Code: SPN 3361 FMI 5 (ACM) Diesel Exhaust Fluid Dosing Valve Circuit Failed Open

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

MONITORED PARAMETER:
DEF dosing valve.

TYPICAL ENABLING CONDITIONS:
Always enabled

MONITOR SEQUENCE:
None

EXECUTION FREQUENCY:
Always enabled

TYPICAL DURATION:
2 seconds

DASH LAMPS:
1. MIL
2. CEL

ENGINE REACTION:
Derate 25%

VERIFICATION:
Engine Idle (1 minute).

PROBABLE CAUSES:
1. DEF doser valve harness connector.
2. DEF metering unit failure.
3. Wiring between DEF doser valve harness and the ECM.