Attention! To avoid injury, do not touch the fan blades with your hands, as it can start at any time!
Examination
1. Models equipped with air conditioning have two fans in the front of the engine compartment: one cooling radiator fan and a second air conditioning condenser fan. The condenser fan runs continuously when the air conditioning system is on. If any of the fans does not turn on when it should work (those. radiator fan does not turn on when engine is warm enough or condenser fan does not turn on when A/C is running), first of all, check the fan motor and its control circuits, first check the integrity of the 40-amp radiator fan fuse in the box under the hood and the 15-amp condenser fan fuse in the box under the front panel (see chapter 12).
2. Disconnect the electrical connector of the idle motor and connect the motor with jumpers directly to the battery (insert a fusible link into the jumper just in case). Some models have a single speed motor (with two leads), and on some - two-speed (with three leads). A single speed motor should run when one of the leads is connected to ground and the other to the positive battery terminal. If the motor is two-speed, then connect the lead with the black wire to ground, and one of the remaining leads to the positive terminal of the battery. The motor must run at low or high speed. Throw the positive wire to the arc terminal - the motor should change the speed of operation. If the motor does not run at all or only runs at one speed, replace the motor.
Warning! Make sure that the temporary contacts do not come into contact with each other and do not touch the metal parts of the car.
3. If the fan worked during the previous weld, but refuses to work when the circuit is restored, then the fuse, relay, thermal switch or wiring may be faulty. The number and location of the fan relays varies by model. On Mazda models manufactured from 1993 to 1997, the cooling fan relays are located in the main turnip and fuse box, and the condenser fan relays are located in the right front corner of the engine compartment (V6 engines) or in the main fuse box (4-cylinder engines). On Mazda models made since 1998, all fan relays are located on the left side of the engine compartment next to the main fuse box. On Probe models, the cooling fan relays are located in front of the radiator or in the left rear corner of the engine compartment. The condenser fan relay on these models is on the left side of the engine compartment next to the relay/fuse box (pic. 4.3,a,6). All relays can be easily tested (see chapter 12).
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Note. The cooling fan relay is controlled by the electronic control unit based on information from the coolant temperature sensor. Checking the temperature sensor is described in chapter 6. If all components of the fan circuit are OK, but the fan does not work, the control unit may be faulty. To diagnose the control unit, contact a specialized service station.
Fan Replacement
4. Disconnect the negative cable from the battery.
Caution: If your vehicle's audio system is equipped with an anti-theft protection, be sure to disconnect the battery before disconnecting the battery. what do you know to unlock code.
5. Remove the inlet duct (see chapter 4).
6. Disconnect the connector from the fan motor (pic. 4.6, a, b). Disconnect the wiring harnesses from the fan shroud.
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7. Turn out bolts and remove a casing of fans (both fans are connected to a common casing) and pull the fan assembly out of the engine compartment. The fan shroud is secured with four bolts - two on the top and two on the bottom.
8. Holding the fan impeller, unscrew its fastening nut (pic. 4.8). Remove the impeller from the motor shaft.
9. Turn away three bolts and remove the fan motor from a casing.
10. Installation of fans is carried out in reverse order. Tighten the cover and air intake duct bolts securely.