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

Engine Coolant Temperature (ECT) Sensor:

REMOVAL
1. Partially drain engine cooling system.
2. Disconnect battery ground cable.

NOTE: When the battery has been disconnected or reconnected, some abnormal drive symptoms may occur while the Powertrain Control Module (PCM) relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 miles) or more to relearn the strategy.

3. Disconnect fuel charging wiring from engine coolant temperature sensor.
4. Remove engine coolant temperature sensor from hot water heater elbow connection.

INSTALLATION
1. Follow removal procedure in reverse order.
2. Tighten engine coolant temperature sensor to 14-19 Nm (11-14 lb ft).
3. Refill engine cooling system.