14.2.1. Chain rupture
For search of rupture of a chain connect one of щупов a control bulb to the negative plug of the accumulator or (weight) of the car.
Connect the second щуп to connection in a checked chain, it is desirable located as it is possible more close to the accumulator or a safety lock.
Submit pressure on a chain. Do not forget that pressure is present at some chains only if to turn a key in the ignition lock in certain position.
If pressure is present (about what the lighted up control bulb will testify or voltmeter indications), it means that the chain part between connection and the accumulator is serviceable.
Continue check of other part of a chain in the same way.
When you will find a point where pressure is absent, it means that the malfunction source lies between this point and last point where pressure was present. The majority of problems is caused by bad connection.