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Home >> Chrysler >> 2008 >> PT Cruiser Base, 2D Convertible, 2.4 E >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P127F To U0168 >> P2181-Cooling System Performance >> Possible Causes

Possible Causes

Possible Causes 
LOW COOLANT LEVEL
(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
THERMOSTAT
ECT SENSOR
PCM

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.