Step
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Action
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Yes
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No
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1
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Include the ignition switch (but the engine is stopped) and check up malfunction of a bulb of the indicator.
The bulb burns?
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Pass to a step 2
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Somewhere there was a problem. Eliminate it
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2
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Check up the electroscheme of the switch of a full drive.
Include the switch of ignition and check up, that pressure between contacts С51-2-18 and С51-3-17 ("earth") for G16/J20 was the following:
* When the gear change lever in position N or 2Н: 10-14 Volt
* When the gear change lever in position 4 L or 4Н: 0-1 Volt
Results of check are satisfactory?
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Pass to a step 3
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Check up the switch of a full drive (the Mechanical transmission (type 1) see the Head), electroschemes “B/Or” and “B” the switch of a full drive. If everything is all right, replace with the serviceable electronic block of management and recheck
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3
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Check up a food.
Include the ignition switch.
Check up pressure between contacts С51-2-7 and С51-3-17 ("earth") for G16/J20. Results of check should be the following:
* When the gear change lever in position N or 2Н: 0-1 Volt
* When the gear change lever in position 4L or 4Н: 10-14 Volt
Results of check are satisfactory?
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Pass to a step 4
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Check up the scheme “R”. If everything is all right, replace with the serviceable electronic block of management and recheck
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4
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Check up the electroscheme of the air pump.
Check up correctness of connection with the air pump on all contacts.
Include the ignition switch.
Check up pressure between contacts С51-2-27 and С51-3-17 ("earth") for G16/J20. Results of check should be the following:
* When the gear change lever in position N or 2Н: 0-1 Volt
* When the gear change lever in position 4L or 4Н (more than 4 seconds after switching in 4L or 4Н): 10-14 Volt
Results of check are satisfactory?
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Pass to a step 5
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Check up the air pump as Service out of a workshop, and then the electroscheme “P” is described in Section. If everything is all right, replace with the serviceable electronic block of management and recheck
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5
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Check up the electroscheme of a bulb of the indicator of a full drive.
Include the ignition switch.
Check up pressure between contacts Е61-19 and С51-3-17 ("earth") for G16/J20. Results of check should be the following:
* When the gear change lever in position N or 2Н: 10-14 Volt
* When the gear change lever in position 4L or 4Н: 0-1 Volt
Results of check are satisfactory?
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Control system of a full drive in a good condition
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Check up the scheme “Or/B” (including a bulb of the indicator and the complex counter). If everything is all right, replace with the serviceable electronic block of management and recheck
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