Tacoma 4WD L4-164.4 2693cc 2.7L DOHC (3RZ-FE) (1996)
Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection
1. DRAIN ENGINE COOLANT.
2. REMOVE ECT SENSOR.
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Disconnect the engine wire protector from the 3 brackets.
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Disconnect the ECT sensor connector.
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Using a 19 mm deep socket wrench, remove the ECT sensor and gasket.
3. INSPECT ECT SENSOR.
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Using an ohmmeter, measure the resistance between the terminals.
Resistance: Refer to the chart graph