For check of integrity of a chain connect the device for verification of schemes or negative щуп the voltmeter to the negative plug of the storage battery or the earthed element.

Connect the second щуп to connection in a checked chain. The chain site thus should be energized from the storage battery under condition of serviceability of sockets and the corresponding safety lock (remember thus that some chains of electric equipment join only at key turn in the ignition lock in a certain situation).

Include the chain, connect щуп a tester to the connection closest to the switch of a chain on the party of the checked element.

If tension is present (about what testify a control bulb or voltmeter indications), it means that a site appreciate between the corresponding connection and the switch has no gaps.

Continue chain check by the same image before site detection on which there is no tension that directly specifies that the rupture of a chain occurred between this point and a point of the previous check.

It is necessary to remember that the majority of problems of the opened chain are caused by the broken or weakened socket.