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:

How to proceed with troubleshooting
HINT: Carry out troubleshooting in accordance with the procedures below. Only a basic procedure is shown. Details in the Diagnostic Section show the most effective methods for each circuit. Confirm the troubleshooting procedures for the relevant circuit before beginning troubleshooting. 1 VE ...