toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Component Inspection|Page 236 > < Component Inspection
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Measure resistance between terminals.

Coolant temp.

Resistance

20°C (68°F)   

2 - 3 k Ohms

80°C (176°F)   

0.2 - 0.4 k Ohms 

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If OK proceed to step 3.

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If not OK replace engine coolant temperature sensor.

3. CHECK FOR OPEN OR SHORT IN HARNESS AND CONNECTOR BETWEEN ECM AND ENGINE COOLANT TEMPERATURE

SENSOR.
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If OK Check and replace ECM.

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If not OK Repair or replace harness or connector.

Component Inspection|Page 236 > < Component Inspection