toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Starter Signal <--> [Cranking Signal] > < Diagram Information and Instructions|Page 2428
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Engine Coolant Temperature Switch (For Computer): Testing and Inspection

ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION 

1. Drain engine coolant

2. Remove ECT sensor

3. Inspect ECT sensor

Using an ohmmeter, measure the resistance between the terminals.

Resistance: Refer to the graph 

If the resistance is not as specified. replace the ECT sensor.

4. Reinstall ECT sensor
5. Refill with engine coolant

Starter Signal <--> [Cranking Signal] > < Diagram Information and Instructions|Page 2428