Checking the serviceability
1. Power to the fan is supplied through the ignition switch and fuse box; its circuit is closed by a thermal switch installed on the radiator.
2. If the fan does not work, start the engine and allow it to warm up to normal operating temperature, then return it to normal idle. If the fan does not come on within a few minutes, turn off the ignition and disconnect the two wires from the thermostat switch. Connect the two wires with a makeshift jumper wire and turn the ignition back on. If the fan now works, the thermostat switch is presumably faulty and needs further testing (see Chapter 6). If the fan still does not work, the problem lies either in its motor or in the associated electrical circuit (don't forget about the fuse).
Removal
3. The fan is removed together with the radiator (see Chapter 3).
4. Unscrew the four fan assembly mounting bolts from the radiator (two at the top and two at the bottom) and separate the fan together with its casing (see photo).
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5. To separate the fan from the casing, unscrew the three mounting nuts (see photo).
Installation
6. Perform installation in reverse order.