Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3363 FMI 5 (ACM) Diesel Exhaust Fluid Coolant Valve Circuit Failed Open
DESCRIPTION:
Diesel exhaust fluid (DEF) coolant valve circuit failed open.
MONITORED PARAMETER:
DEF coolant valve.
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Always enabled
TYPICAL DURATION:
Two seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate 10%
VERIFICATION:
Engine Idle: One minute.
NOTE: If code not active, release vehicle to customer.
PROBABLE CAUSES:
1. DEF coolant valve harness connector.
2. Wiring between DEF coolant valve harness connector and the 120-pin ECM connection.
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