Engine Coolant Temperature (ECT) Sensor

DESCRIPTION
The engine coolant temperature sensor (ECT) detects temperature of engine coolant and supplies information to the powertrain control module. The ECT sensor is used to control torque converter clutch (TCC) operation.

SYMPTOMS
Torque converter clutch will always be off if ECT sensor reads cold or normal, resulting in reduced fuel economy.

DTC's
P0116, P0117, P0118