DESCRIPTION:
Coolant temperature sensor not plausible.

MONITORED PARAMETER:
Coolant inlet temperature sensor.

TYPICAL ENABLING CONDITIONS:
1. Engine speed 500- 2500 rpm.
2. Coolant temperature is greater than 11 vDC.
3. Run engine greater than 60s.

MONITOR SEQUENCE:
None

EXECUTION FREQUENCY:
Once per drive cycle.

TYPICAL DURATION:
30

DASH LAMPS:
MIL

VERIFICATION:
1. Start Engine.
2. Warm up such that coolant temperature is greater than 11 vDC and engine has been running for at least 1 minute.
3. Bring engine to idle speed.
4. Being certain that it is greater than 500 rpm.

NOTE: If there are any cooling system faults or conditions, repair those first.

PROBABLE CAUSES:
1. Inlet coolant temperature sensor.
2. Inlet coolant temperature sensor connector/harness.