P0118

Test 1 - 2:

Test 3 - 7:

SYMPTOM
P0118-ENGINE COOLANT TEMPERATURE (ECT) SENSOR VOLTAGE TOO HIGH

WHEN MONITORED
With ignition on and battery voltage greater than 10.4 volts.

SET CONDITION
The circuit voltage to the ECM is above a calibrated threshold for a certain period of time.

POSSIBLE CAUSES
- Coolant temperature sensor
- Intermittent condition
- Signal circuit open
- Sensor return circuit open
- Signal circuit shorted
- ECM