Celica GT Liftback L4-2164cc 2.2L DOHC (5S-FE) MFI (1999)
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Coolant Temperature Sensor / Switch HVAC: Testing and Inspection
INSPECT SWITCH CONTINUITY
a. Using an ohmmeter, check that no continuity exists between the terminals when the coolant temperature is above 90°C (194°F).
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.
