toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Coolant Temperature Sensor / Switch HVAC|Testing and Inspection|Page 752 > < A/C Pressure Sensor/Switch - Cooling Fan|Specifications
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Coolant Temperature Sensor / Switch HVAC: Testing and Inspection

INSPECT ECT SWITCH CONTINUITY

a. Using an ohmmeter, check that no continuity exists between the terminals when the coolant temperature is above 93 °C (199 °F).

If continuity exists, replace the switch.

b. Using an ohmmeter, check that continuity exists between the terminals when the coolant temperature is below 83 °C (181 °F).

If no continuity exists, replace the switch.

Coolant Temperature Sensor / Switch HVAC|Testing and Inspection|Page 752 > < A/C Pressure Sensor/Switch - Cooling Fan|Specifications