Front window heating — general information The heated windshield prevents the windshield wiper from freezing to the glass in winter. The control module receives a signal from the switch and energizes the relay....
Checking the front window heater 1. Disconnect heater connector (A) near the wiper motor. 2. Check the continuity of the circuit between the contacts on the heater side. 3. Turn on the ignition and...
Checking the front window defroster switch 1. Disconnect the negative battery terminal. 2. Remove the front panel and disconnect the switch connector. 3. Check the continuity of the circuit between the contacts...
Rear window heating check 1. Turn on the heated rear window. Connect a voltmeter to one end of the heating network and to the center of the glass. The voltage must be 6V. 2. If the voltmeter...
Rear window heating switch — check 1. Disconnect the negative battery terminal. 2. Remove the front panel and disconnect the heated rear window switch connector. 3. Check the continuity of the circuit at...
Rear window heating relay — check 1. Remove the heated rear window relay (A) from the interior relay box. 2. Check continuity between pins 1 and 4 by applying 12V to pins 2 and 3. The circuit should be...
Seat heater switch 1. Disconnect the negative battery terminal. 2. Remove the switch from the front console. 3. Check the continuity of the circuit between the contacts of the switch.
Checking the technical condition of the seat heater 1. Disconnect the connector and check the resistance between the contacts. The normal value of the resistance is 2.6 ohms + 10%. 2. Check the functionality of the...
General Refrigerant Handling Precautions 1. R-134a refrigerant is highly volatile. Contact with a drop of refrigerant on the skin can cause local frostbite. Always wear gloves when working with refrigerant. 2....
Precautions for Replacing Air Conditioning Parts 1. It is forbidden to loosen the connections of parts before draining the refrigerant from the system. 2. To prevent the ingress of moisture, immediately close the open...
Installation of control pressure gauges 1. Close both valves of the pressure gauge adapter. 2. Attach the filling hoses to the fittings of the adapter. Connect the low pressure hose to the low pressure filling...
Draining the refrigerant of the air conditioning system 1. Connect a set of test gauges to the system. 2. Lay a towel under the open end of the center hose. 3. Drain the refrigerant by slowly opening the high pressure valve....
Actions with the air conditioning charging valve 1. Before connecting the valve to the refrigerant tank, turn its handle completely counterclockwise. 2. Set the disc to its highest position by turning counterclockwise....
Charging the system with vapor refrigerant Note. This operation is performed to charge the system with vaporized refrigerant through the low pressure circuit. When the refrigerant tank is in a vertical position,...
Charging the system with liquid refrigerant Note. This operation is performed to charge the discharged system with liquid refrigerant through the high pressure circuit. When the container is upside down, the...
Checking the cooling capacity of the system 1. Install control pressure gauges. 2. Start the engine and leave it running at 2000 rpm, set the temperature switch to the position corresponding to the maximum cooled...
Compressor oil — general information Oil for lubricating the compressor during its operation circulates in the system. Whenever parts of the system are replaced or a large amount of refrigerant leaks, add...
Filling the compressor with oil Before checking the oil level and adding oil, let the engine idle for 20-30 minutes, setting the temperature switch to the position corresponding to the maximum cooled...
Checking and restoring the compressor oil level To add oil while the compressor is running, first check the oil level as follows: 1) Fill the compressor with oil, stop the engine, drain the refrigerant and remove the...
System leak test In all cases where a refrigerant leak is suspected or work is being done to disconnect components or loosen connections, perform a system leak test using an electronic...
Diagnostics of the air conditioning system During normal operation of the air conditioning system, the readings of the low pressure gauge will be 0.15-0.25 MPa, the readings of the high pressure gauge will be...
Electromagnetic clutch 1. Check the gap between the clutch sleeve B and the compressor pulley A with a feeler gauge. The nominal gap is 0.15±0.15 mm. 2. Turning the pulley, repeat the...
Removal and installation of the compressor 1. Loosen the tensioner pulley and remove the drive belt. 2. Release the refrigerant from the system. 3. Disconnect hoses A and B from the compressor. 4. Remove the...
Compressor disassembly 1. Use a special tool to unscrew the mounting bolt. 2. Remove bushing and gasket from compressor shaft. If it is difficult to remove the bushing, by screwing an 8 mm...
Compressor bushing and pulley installation 1. Clean the seating surface of the winding cage. 2. Place the compressor in a vertical position and install the winding on the front head of the compressor. Check the...
Compressor fuse 1. The fuse is in the winding of the compressor clutch. 2. Compressor slip (over 184°C) the fuse opens the circuit. This saves the clutch bearing and drive belt. After...
Checking the technical condition of the condenser 1. Check the condenser plates for blockage and damage. In case of clogging, rinse them with a jet of water and blow with compressed air. Carefully straighten bent plates...
Capacitor replacement 1. Remove the refrigerant from the system. 2. Remove the expansion tank of the cooling system. 3. Remove bolt A and remove bracket B. 4. Loosen bolts A and disconnect...
Heater — replacement 1. Discharge the air conditioning system. 2. Allow the engine to cool and drain the coolant. 3. Disconnect the negative terminal from the battery. 4. Loosen bolt A and...
Electric heater — device Designed for accelerated heating of the car interior when the engine is not warmed up to operating temperature, and the heater does not operate at full capacity. The...
Electric heater damper drives Damper drive right Supply voltage 12 V, response time 4 sec, opening current 0.1 A, closing current 0.55 A. Replacement 1. Disconnect connector A from drive C. Loosen...
Fan — replacement 1. Disconnect the negative terminal from the battery. 2. Disconnect the wiring connector. 3. Disconnect connectors A of the fan relay, fan motor, damper actuator. Loosen...
Fan air filter The combined air filter cleans the air of impurities and odors, which creates a comfortable environment in the car. Replacement 1. Open the glove box, press lock A and...
Ventilation sensors Thermistor When the evaporator reaches the desired temperature, the thermistor turns off the compressor. NTC thermistor. 1. Remove the protective cover. 2. Start the...
Evaporator temperature sensor The sensor measures the temperature of the evaporator and interacts with the air conditioning control unit to help maintain the set temperature in the car. Check the...
Photosensor — general information The photo sensor is installed on the driver's side in front of the windshield. The sensor emits at a certain frequency and receives a light signal reflected from the...
Cabin air temperature sensor The sensor measures the air temperature in the passenger compartment. Adjusts the degree of air cooling, the operation of the temperature control flaps and the fan motor.
Ambient temperature sensor An air temperature sensor located in front of the radiator measures the ambient air temperature. NTC thermistor; The resistance of the sensor increases with decreasing...
Air quality sensor (AQS) An air quality sensor located in the passenger compartment detects harmful impurities in the air and sends appropriate signals to the air conditioning control unit. The...
Humidity sensor — general information The humidity sensor is designed to determine the moisture content in the air inside the car. It adjusts the degree of air cooling, the operation of the temperature...