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5-14-diagnostika-sistemy-kondicionirovaniya-vozdukha.html
5.14. Diagnostics of the air conditioning system
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- Include ignition.
- Within 5 seconds after implementation of start of the engine press the OFF button on the K/V control panel and hold it pressed within not less than 5 seconds.
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Step 1 - check of light-emitting diodes and active zones of the display
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- Make sure of serviceability of a luminescence of all light-emitting diodes.
- Check serviceability of functioning of all segments of active zones of the screen.
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- If any light-emitting diodes do not burn, or defects of the screen take place, therefore, the OFF switch is faulty, or the fluorescent tube of the display failed. Replace the AUTO K/B amplifier.
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- If everything is all right, you pass to the following stage of check.
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Check of serviceability of functioning of the HOT switch
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- Press the switch (HOT) of the К/В control panel.
- On the screen has to the offer of transition to a step 2 checks will be highlighted ("Advance to self-diagnosis STEP 2?"), otherwise the HOT switch is damaged and it is necessary to replace the AUTO K/B amplifier.
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Check of serviceability of functioning of the COLD switch
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- Press the switch (COLD) of the control panel.
- On the screen has to the offer of return to a step of 1 check will be highlighted ("Return to self-diagnosis STEP 2?"), otherwise the COLD switch is damaged and it is necessary to replace the AUTO K/B amplifier.
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Step 2 – check of a condition of chains of the K/V information sensors on break and short circuit
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- Press the switch (HOT) — on the screen the code No. 20 has to be highlighted.
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- If the code 20 is highlighted regularly, pass to the following stage of check, otherwise pass to the last stage.
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Step 3 – check of serviceability of functioning of the inlet gate and gate of switching of the modes of circulation
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- Press the switch (HOT) — on the screen the code No. 30 has to be highlighted.
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- If the code 30 is highlighted regularly, pass to the following stage of check, otherwise pass to the last stage.
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Step 4 – check of serviceability of functioning of actuation mechanisms
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- At the started engine press the switch (HOT).
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- Has to lead Nazhimaniye on the DEF button to consecutive highlighting of codes with 41 on 46, confirming serviceability of functioning of all actuation mechanisms (see the following stage of check).
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Identification of actuation mechanisms
ID card of conditions of the K/V actuation mechanisms
| Number of a code |
Procedure for test of the actuation mechanism |
| Drive of the regime gate |
Drive of the inlet gate |
Drive of the mixing gate |
Heater fan drive |
Compressor drive |
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41 |
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The closed circulation
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Maximum refrigerating capacity
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4 — 5B
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It is included
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42
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The closed circulation
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Maximum refrigerating capacity
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9 — 11B
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It is included
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43 |
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20 percent supply of fresh air
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Maximum heating
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7 — 9B
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It is switched off
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44 |
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100 percent supply of fresh air
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Maximum heating
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7 — 9B
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It is switched off
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45 |
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100 percent supply of fresh air
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Maximum heating
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7 — 9B
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It is included
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46 |
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100 percent supply of fresh air
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Maximum heating
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10 — 12B
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It is included
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Check of serviceability of functioning of the drive of switching of the directions of distribution of air
| Position of the handle of the choice of the directions of distribution |
Direction of air supply |
| On front level |
In foot wells |
On having blown in glasses |
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100% |
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60%
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40%
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80%
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20%
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60%
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40%
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100%
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Step 5 – Check of serviceability of functioning of sensors of temperature
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- Press the switch (HOT) — on the screen the code No. 5 has to be highlighted.
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- You pass to the following stage of check.
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Sensor of temperature of external air
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- Once press the switch (DEF) — on the screen the indication of temperature of external air has to be highlighted.
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Conclusion to the screen of the inscription ECON testifies to negative indications. |
- If the displayed value considerably differs from real, it is necessary to check at first a condition of an electrical wiring of a chain of the sensor, then actually the sensor.
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The air temperature sensor in salon
Example of a conclusion of identification codes of failures of the sensor switch of the gate of switching of the modes of distribution / air circulation
ID card of codes of indications of sensors switches of provision of electric motors of the drive of gates
| Code *, ** |
Position of the gate |
| On front level |
In foot wells |
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31 |
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Gate of switching of the modes of circulation
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32
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34
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35
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36
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37
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Entrance gate |
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38
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20 percent supply of fresh air
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39
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100 percent supply of fresh air
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* A conclusion to the screen of the following indications testifies to a rassoyedineniye of the contact socket of an electrical wiring of the motor of the drive of the regime gate: 32> 32> 34> 35> 36> return to 31.
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* A conclusion to the screen of the following indications testifies to a rassoyedineniye of the contact socket of an electrical wiring of the motor of the drive of the entrance gate: 37> 38> 39> return to 37.
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Check of serviceability of functioning of sensors switches of provision of electric motors of the drive of gates
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