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Home >> Jeep >> 2002 >> Grand Cherokee 2WD Laredo V8-4.7L >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> P Code Charts >> P0118

P0118

Tests 1 - 2:




Tests 3 - 6:




Test 7:




SYMPTOM
P0118-ECT SENSOR VOLTAGE TOO HIGH

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

SET CONDITION
The Engine Coolant Temperature (ECT) Sensor circuit voltage at the PCM goes above 4.94 volts for more than 3 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