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Home >> Jeep >> 2009 >> Commander Overland, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P000B To P0123 - NGC >> P0118-Engine Coolant Temperature Sensor Circuit High >> Possible Causes

Possible Causes

Possible Causes 
(K2) ECT SIGNAL CIRCUIT SHORTED TO VOLTAGE
(K2) ECT SIGNAL CIRCUIT OPEN
(K900) SENSOR GROUND CIRCUIT OPEN
ENGINE COOLANT TEMPERATURE SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See  DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure  .