DESCRIPTION:
Quantity control valve (High Side) error.
MONITORED PARAMETER:
Quantity control valve.
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Continuous when enabling conditions met.
TYPICAL DURATION:
Two seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate 25%
VERIFICATION:
Engine idle: One minute.
POSSIBLE CAUSES:
1. MCM pin 1 circuit is shorted to ground.
2. Internal short of the quantity control valve.
NOTE: If code 5418-4 is also active, repair 5418-4 first.
PROBABLE CAUSES:
1. Quantity control valve harness connector/wiring.
2. Failed quantity control valve.
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