Toyota Highlander Service Manual: Cooling fan system (3MZ-FE)

Inspection

1. INSPECT THERMOSTAT HINT: The valve opening temperature is stamped on the thermostat. (a) Immerse the thermostat in water and gradually heat the water. (b) Check the valve opening tempe ...

On-vehicle inspection

HINT: The cooling fan may rotate when the ignition switch is turned from ACC to ON. This is normal. 1. CHECK COOLING FAN OPERATION AT LOW TEMPERATURE (Below 83 C (181 F)) (a) Turn the ignition sw ...

More about Toyota Highlander:

Inspection
1. INSPECT RELAY (Marking: FAN NO. 1, FAN NO. 3) (a) Check the resistance of the relay. Standard: If the result is not as specified, replace the relay. 2. INSPECT RELAY (Marking: FAN NO. 2) (a) Check the resistance of the relay. Standard: If the result is not as specified, rep ...