Detroit DD13 EPA10 (2010-13) Fault Code: SPN 4336 FMI 5 (ACM) Diesel Exhaust Fluid Pressure Limiting Unit Circuit Failed Open
DESCRIPTION:
Diesel exhaust Fluid (DEF) pressure limiting unit circuit failed open.
MONITORED PARAMETER:
Diesel exhaust fluid (DEF) pressure limiting unit.
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 25%
VERIFICATION:
Engine Idle: One minute.
PROBABLE CAUSES:
1. Pressure limiting unit harness connector/wiring.
2. Failed pressure limiting unit.
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