Toyota Highlander Service Manual: Cooling fan system (2AZ-FE)

Inspection

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

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 WITH LOW TEMPERATURE (Below 83 C (181 F)) (a) Turn the ignition ...

More about Toyota Highlander:

On-vehicle inspection
1. INSPECT AIR-FUEL RATIO COMPENSATION SYSTEM (a) Measure the voltage between the terminals of the ECM connectors. Standard: NOTICE: Connect test leads to the connector's backside. The connectors should not be disconnected from the ECM. HINT: Voltage between the terminals of the EC ...