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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 >> P0116-Engine Coolant Temperature Sensor Circuit Performance >> Possible Causes
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Possible Causes

Possible Causes 
(K2) ECT SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
(K2) ECT SIGNAL CIRCUIT OPEN
(K900) SENSOR GROUND CIRCUIT OPEN
(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  ).