DESCRIPTION:
Hydrocarbon (HC) doser fuel line pressure low.
MONITORED PARAMETER:
HC doser fuel line pressure.
TYPICAL ENABLING CONDITIONS:
Dosing enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Continuous when enabling conditions met.
TYPICAL DURATION:
One minute
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate 10%
VERIFICATION:
Parked regeneration
NOTE: If there are any other fuel system codes, 3480-14, 3480-31, 3480-1, or 4407-14 present, fix those first.
PROBABLE CAUSES:
1. Inspect the Hydrocabon (HC) doser block assy and associated fuel lines for leaks.
2. Perform parked regen.
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