Pic. 12.5. Panel of the block of the automatic climate control system: 1 - temperature regulator of the air entering the driver's area; 2 - button to increase the intensity of air supply to the cabin; 3 - button to turn off the two-zone temperature control mode; 4 - button for enabling the mode of intensive defrosting of the interior glazing; 5 - two-zone display of the automatic climate control system; 6 – recirculation mode switch; 7 - button for turning on the climate control system; 8 - temperature regulator of the air entering the front passenger area; 9 - air conditioner compressor switch; 10 - button to turn off the climate control system; 11 - button for turning on the windscreen blowing mode; 12 - button for turning on the blowing mode of the front zone; 13 - button for switching on the mode of blowing the zone of passengers' feet; 14 - button to reduce the intensity of air supply to the passenger compartment; 15 - switch for automatic control of the ventilation, heating and air conditioning system.
Simultaneously press buttons 10 on the microclimate control unit (see fig. 12.5) and 13 for no more than 2 s, then press button 15 within 1.5 s. The on-board diagnostics that has begun will last for several seconds. At this time, animated information is displayed on the display 5 of the microclimate control unit. All detected faults are displayed on both halves of the display as fault codes. For example, the left half of the display shows "90", the right half shows "B3" - the fault code read is 90B3 (short circuit of the electrical circuit of the air temperature sensor supplied through the right air ducts of the instrument panel - short to ground). In table. 12.1 shows the codes of possible malfunctions and their interpretation.
When button 4 is pressed, the information in the fault code memory is erased and the diagnostic mode ends. To exit the diagnostic mode without erasing the trouble codes, press any other button on the microclimate control unit.
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