FixVault

Possible Causes

Possible Causes 
INTERMITTENT DTC
(K2) ECT 1 SIGNAL CIRCUIT SHORTED TO VOLTAGE
(K2) ECT 1 SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE
(K900) SENSOR GROUND CIRCUIT OPEN OR HIGH RESISTANCE
ENGINE COOLANT TEMPERATURE SENSOR 1
POWERTRAIN CONTROL MODULE (PCM)

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .