Operation CHARM: Car repair manuals for everyone.

Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection


Water Thermoswitch Inspection:





1. Disconnect the connectors from the water thermoswitch, and connect an ohmmeter to the switch.
2. Check the continuity of the switch.

COOLANT TEMPERATURE CONTINUITY

More than approx 17°C (63°F) YES
Less than approx 17°C (63°F) NO

3. If not correct, replace the water thermoswitch.