Corolla LE Sedan L4-1762cc 1.8L DOHC MFI (1998)
Radiator Cooling Fan Motor: Testing and Inspection
ON-VEHICLE INSPECTION
1. Check cooling fan operation with low temperature. (Below 83°C (181°F)
a. Turn the ignition switch ON.
b. Check that the cooling fan is stopped.
If not, check the cooling fan relay and engine coolant temperature (ECT) switch, and check for a separated connector or severed wire between
the cooling fan relay and ECT switch.
c. Disconnect the ECT switch connector.
d. Check that the cooling fan rotates.
If not, check the engine main relay, cooling fan relay, cooling fan, fuses, and check for short circuit between the cooling fan relay and ECT
switch.
e. Reconnect the ECT switch connector.
2. Check cooling fan operation with high temperature. (Above 93°C (199°F).
a. Start the engine, and raise coolant temperature to above 93°C (199°F).
b. Check that the cooling fan rotates.
If not, replace the ECT switch.
