Toyota Highlander Service Manual: Cooling fan system (3MZ-FE)
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 ...
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:
Symptom simulation
HINT:
The most difficult case in troubleshooting is when no problem symptoms occur. In
such cases, a thorough
customer problem analysis must be carried out. A simulation of the same or
similar conditions and environment
in which the problem occurred in the customer's vehicle should be carried ...
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