14.2.2. Short circuit
For check of a chain on existence of short circuit, disconnect chain loading in the beginning (loading is elements of electric equipment which consume the electric power, such as bulbs, engines, heating elements, etc.).
Remove a safety lock of the corresponding chain and connect a control bulb or the voltmeter to plugs of connection of a safety lock.
Give tension on a chain. Do not forget that tension is only present at some chains if to turn a key in the ignition lock in a certain situation.
If tension is present (what the lit-up control bulb or indications of the voltmeter will testify to), it means that in a chain there is a short circuit.
If there is no tension, but the safety lock nevertheless fuses at connection of elements of loading, so is faulty any of these elements.