Component Tests and General Diagnostics

ON-VEHICLE INSPECTION
1. CHECK COOLING FAN OPERATION WITH HIGH TEMPERATURE (Above 98°C (208°F))





a. Start the engine, and raise coolant temperature to above 98°C (208°F).





b. Check that the cooling fan rotates.
If not, replace the No.1 ECT switch.





2. INSPECT COOLING FANS
a. Disconnect the cooling fan connector.
b. Connect battery and ammeter to the cooling fan connector.
c. Check that the cooling fan rotates smoothly, and check the reading on the ammeter.
Standard amperage: 8.5 - 11.5 A at 20°C (68°F)
d. Reconnect the cooling fan connector.