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Home >> Chrysler >> 2005 >> 300 Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Diagnostic Code Index, DTCS P0016 To P0121, Troubleshooting Procedure & Intermittent Condition >> Diagnosis And Testing >> P0117-Engine Coolant Temperature Sensor Circuit Low >> Possible Causes

Possible Causes

Possible Causes 
(K2) ECT SIGNAL CIRCUIT SHORTED TO GROUND
(K2) ECT SIGNAL CIRCUIT SHORTED TO THE (K900) SENSOR GROUND
ECT SENSOR
PCM

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

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