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Home >> Fiat >> 2014 >> 500c Pop, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> 1.4L - I4 Non-Turbo - DTCS P0016-00 To P0354-00 - 500 & 500C >> Diagnosis And Testing >> P0118-00-Engine Coolant Temperature Sensor 1 Circuit High >> Possible Causes

Possible Causes

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

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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