4 Runner 2WD L4-2693cc 2.7L DOHC MFI (1997)
Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection
Component Inspection
ENGINE COOLANT TEMPERATURE SENSOR INSPECTION
1. Drain engine coolant.
2. Remove ECT sensor.
(a) Disconnect the engine wire protector from the 3 brackets.
(b) Disconnect the ECT sensor connector.
(c) Using a 19 mm deep socket wrench, remove the ECT sensor and gasket.
3. Inspect ECT sensor.
Using an ohmmeter, measure the resistance between the terminals.
