FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

P0118

Tests 1 - 2:




Tests 3 - 6:




Test 7:




SYMPTOM
P0118-ECT SENSOR VOLTAGE TOO HIGH

WHEN MONITORED
With the ignition ON. Battery voltage greater than 10 volts.

SET CONDITION
The Engine Coolant Temperature (ECT) sensor circuit voltage at the PCM is greater than 4.96 volts for more than 2.6 seconds.

POSSIBLE CAUSES
- Intermittent Condition
- ECT Sensor Signal Circuit Shorted To Battery Voltage
- ECT Sensor Internal Failure
- ECT Sensor Signal Circuit Open
- Sensor Ground Circuit Open
- PCM Terminal Condition
- PCM