Inspection and verification
1. Visually inspect for obvious signs of damage and system integrity.
| Mechanical factors | Electrical factors |
| Parking brake indicator lamp electrical circuit. |
2. If an obvious cause for the problem you identified or the customer described is found, correct it (if possible) before moving on to further action.
3. If the cause is not visually obvious, check the malfunction symptom and refer to the Malfunction Symptom Table.
The article was taken from this resource www.lrman.ru
Table of signs of malfunction
| Sign of malfunction | Possible reason | Action |
| The parking brake does not engage | Go to Pinpoint test A | |
| The parking brake cannot be released | Go to Pinpoint test B |
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