Coolant Temperature Sensor/Switch (For Computer): Service and Repair

Engine Coolant Temperature (ECT) Sensor:

REMOVAL
1. Disconnect battery ground cable.

NOTE: When battery voltage is removed from the Powertrain Control Module (PCM), all learned values will be cleared and reset to predetermined values. When battery voltage is restored to the PCM, the vehicle may exhibit certain driveability concerns. It will be necessary to drive the vehicle to allow the PCM to relearn values for optimum driveability and performance.

2. Partially drain cooling system.
3. Disconnect ECT sensor electrical connector.
4. Remove ECT sensor from the heater hot water tube.

INSTALLATION
1. To install, reverse the removal procedure.
2. Tighten the ECT sensor to 12-20 Nm (10-15 lb ft).
3. Refill cooling system.