DESCRIPTION:
Selective catalyst reduction (SCR) inlet temperature sensor circuit failed high.
MONITORED PARAMETER:
SCR inlet temperature sensor.
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCY:
Always enabled
TYPICAL DURATION:
Two seconds
DASH LAMPS:
1. MIL
2. CEL
VERIFICATION:
Engine idle: One minute.
PROBABLE CAUSES:
1. SCR inlet temperature sensor.
2. SCR inlet temperature sensor connector/harness.
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