DESCRIPTION:
This fault code sets when the aftertreatment control module (ACM) detects an open on the diesel exhaust fluid (DEF) doser valve circuit.
MONITORED PARAMETER:
DEF dosing unit voltage.
TYPICAL ENABLING CONDITIONS:
DEF dosing enabled then disabled.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Continuous when enabling conditions met.
TYPICAL DURATION:
50 seconds (max).
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate 25%
VERIFICATION:
Key off five minutes after repair.
PROBABLE CAUSES:
1. DEF doser valve harness connector.
2. DEF metering unit failure.
3. Wiring between DEF doser valve harness and the ECM.
We’ll never share your email address with a third-party
Reviews
There are no reviews yet.