Air conditioning system — general information General form: 1 - compressor, 2 - relay block No. 2: heater fan relay No. 1, radiator fan relay No. 2, air conditioner electromagnetic clutch relay, 3 - relay block No. 1: main heater relay, 4 - radiator, 5 - radiator...
Installing and removing the pressure gauge block Installation 1. Attach charging hoses to gauge block. Tighten the nuts by hand. 2. Install the quick-release adapters on the hoses. 3. Close both gauge block valves. 4. Remove the plugs from the cooling line service...
Vacuuming and charging the air conditioning system 1. Install the gauge block. 2. Vacuum the system. A) Install the adapter on the vacuum pump. b) Connect the center hose of the gauge block to the vacuum pump adapter. V) Open both gauge block valves and turn on the...
Checking the air conditioning system using a block of manometers 1. Connect the gauge block. 2. Take readings from pressure gauges under the following conditions. A) Air intake control switch in position "RECIRC" (air temperature in the air intake is 30-35°С). b) The engine operates...
Checking the amount of refrigerant 1. Set the temperature control to maximum cooling mode. 2. Set the maximum fan speed ("HI") 3. Set the air mixing damper to position "RECIRC" (recycling). 4. Turn on the air conditioner. 5. Open all doors. 6. Maintain...
Checking the A/C Compressor Drive Belt 1. Check the condition of the belt and the correct installation of the belt in the pulley grooves. 2. Check the tension of the belt Press the belt in the place shown in the figure with a force of 98 N (10 kgf) and...
Check of system of increase in frequency of rotation of idling 1. Start and warm up the engine. 2. Set the following modes: A) The electrical load is off. b) Heater fan speed control in position "HI". V) Air conditioning included. G) Temperature regulator in position "MAX COOL". d)...
Cooling pipes — check and replace Vehicle check 1. Check tightness of pipe connections. 2. Use a leak detector to check the system for leaks. Replacement of pipeline elements 1. Remove the refrigerant from the system. 2 Replace defective elements....
Air conditioning compressor — check Checking the electromagnetic clutch on the car 1. Visual check. A) Check that there are no traces of oil on the pressure plate and rotor. b) Check for noise and grease leakage from the clutch bearings. 2. Check the...
Expansion valve — check on the car 1. Check the amount of refrigerant. 2. Install the gauge block. 3. Start the engine. 4. Set the idle speed to 1500 rpm and let the engine run for approximately 5 minutes. 6. Check that the high pressure gauge reading is...
Heater fan — removal, installation and inspection Removal and installation Disconnect the connector, unscrew the 3 screws and remove the motor. Examination Connect "plus" battery to output "1" connector, and "minus" - to the conclusion "2". Make sure the fan rotates...
Air intake damper servo Removing The drive is located in the heater block. Examination 1. Connect the battery to the terminals "7" (+) And "3" (-) connector. Check that the damper moves to the position "FRESH" (ventilation). 2. Connect the...
Servo valve for mixing air flows Removing 1. Remove the glove box door. 2. Remove the servo. A) Disconnect the connector. b) Loosen the two screws and remove the drive. Examination 1. Check the operation of the servo. A) Connect the battery to the...
Airflow direction damper servo Removing 1. Remove the bottom trim panel. 2. Remove the servo. Examination 1. Connect the battery to the terminals "6" (+) And "7" (-) connector. 2. Connecting each terminal of the connector to the negative terminal of...
Heater fan resistor Removing Disconnect the connector and remove the heater fan resistor. Examination Check for continuity between all connector pins.
Ambient temperature sensor 1. Disconnect the sensor connector. 2. Measure the resistance between the connector pins. The resistance should be between 1625-1785 ohms at 25°C.
Cabin temperature sensor Removing 1. Remove the bottom trim panel mounting bolts. 2. Disconnect the connector. 3. Release the sensor latch and remove it. Examination Measure the resistance between the connector pins. The resistance should be...
Sunlight sensor Removing Using a screwdriver, carefully remove the sensor and disconnect the connector. Examination 1. Shield the sensor from light and check that there is no continuity between the leads. 2. Point a bright light source...
Evaporator temperature sensor Examination By car Measure the resistance between the connector pins. Rated resistance 1500 Ohm at 25°C. Removed sensor Immerse the sensor in cold water with ice. Measure lead-to-terminal resistance and temperature....
Pressure switch Examination 1. Install the gauge block. 2. Disconnect the connector from the pressure switch. 3. Set the engine speed to about 1500 rpm. 4. Check the operation of the switch. Magnetic clutch control A) Connect an...
Heater and fans relay Examination 1. Checking the heater relay. A) Check for continuity between terminals "1" And "3". b) Check for continuity between terminals "2" And "4". V) Check for continuity between terminals only "4" And "5" relay...
Air conditioning control unit Examination 1. Check backlight operation: A) Connect the battery to the terminals "A9" (+) And "A20" (-). Check that the backlight is on. If the lamp does not light, perform the following checks. b) Disconnect the air...