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Home >> Jeep >> 2025 >> Grand Cherokee Summit 4xe >> Repair and Diagnosis >> Engine Performance >> System >> 2.0L - DTCS P0108 To P0125 >> DTC Troubleshooting >> P0116 Engine Coolant Temperature Sensor Performance >> Possible Causes

Possible Causes

Possible Causes
HIGH RESISTANCE IN THE ECT TEMP SIGNAL CIRCUIT
HIGH RESISTANCE IN THE SENSOR GROUND CIRCUIT
ENGINE COOLANT TEMPERATURE (ECT) SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to:  2.0L - PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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