SEQUENCE OF WORKS
1. First of all, check the condition of the fuses.
2. If the fuses are OK, disconnect the connector from the temperature sensor.
Fig. 6.9. Using a piece of wire to short-circuit the contacts in the connector (1), disconnected from the temperature sensor (2), to check the functionality of the radiator fan
3. Using a piece of wire, short-circuit both contacts in the connector connected to the temperature sensor (Fig. 6.9). If the fan now starts working after turning on the ignition, then the temperature sensor is faulty. This is the most common fault.