Subaru of Legasi
+ 1.1. Identification numbers
+ 2. Maintenance
+ 3. Engines
- 4. Heating, ventilation
- 4.1. Cooling system
4.1.1. Introduction
4.1.2. Technical characteristics
4.1.3. Antifreeze
4.1.4. Check and replacement of the thermostat
4.1.5. Check and replacement of the fan of a radiator and relay
4.1.6. Radiator
4.1.7. Broad tank
4.1.8. Water pump
4.1.9. Sensor of temperature of cooling liquid
+ 4.2. System of heating
+ 4.3. Air conditioning system
4.4. System of climate control
+ 5. Fuel system
+ 6. Exhaust system
+ 7. Systems of start, ignition
+ 8. Transmissions
+ 9. Coupling, shaft
+ 10. Brake system
+ 11. Suspension bracket
+ 12. Steering
+ 13. Body
+ 14. Electric equipment
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Radiator fan details
1 – radiator
2 – additional fan of a radiator
3 – casing of the additional fan of a radiator
4 – hose |
5 – cover
6 – broad tank
7 – casing of the main fan of a radiator
8 – main fan of a radiator |
Fans of a radiator turn on relay which cope the ECM block. The ESM block receives information from the sensor of temperature of cooling liquid and on the basis of this information gives a signal on turning on of the fan of a radiator. The additional fan of a radiator turns on only at turning on of the air conditioning system. Scheme of check of the main relay of the fan
Resistance between contacts of 1 and 3 relays has to make 100 Ohms, and between contacts 2 and 4 has to be equal to infinity. When giving tension of the accumulator to contacts 1 and the 3rd resistance between contacts 2 and 4 has to be equal 0.
Check
| PERFORMANCE ORDER |
| 1. If the fan of a radiator does not work, first of all check integrity of the fuse of the fan. |
| 2. If the safety lock is serviceable, check, whether the radiator fan engine works. For this purpose separate the electric socket of the engine of the fan of a radiator and give additional wires accumulator tension on the radiator engine socket. |
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3. Consistently connect a positive wire from the accumulator to contacts of 2 and 3 electric sockets (it is specified by an arrow). Thus the engine of the fan of a radiator has to work at different speeds. |
| 4. If when giving tension from the accumulator the engine of the fan does not work for the fan engine socket, it needs to be replaced. |
| 5. If the engine of the fan of a radiator is serviceable, but does not work at an engine overheat, disconnect the electric socket from the engine of the fan of a radiator and check tension on contacts of the socket at the hot engine. |
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6. If tension on the socket is absent, check serviceability of the relay of the fan installed in the relay block in a motor compartment. If the relay does not work, replace it with the new. |
Prevention
On models since 1995 two main relays of the fan are installed.
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| 7. If the relay is serviceable, check serviceability of the sensor of temperature of cooling liquid. |
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Replacement
| PERFORMANCE ORDER |
| 1. Disconnect the electric socket of the engine of the fan of a radiator. |
| 2. Unscrew bolts of fastening of a casing of the fan to a radiator and remove assembly of the fan from the car. |
| 3. Unscrew bolts of fastening of the engine of the fan of a radiator to a casing of the fan and remove the fan engine together with the fan. |
| 4. If replacement of the engine of the fan is made, remove the fan from the engine and install the fan on the new engine. |
| 5. Installation is made in sequence, the return to removal. |
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