Warning! Electrical fault (short circuit) may cause electrical wiring to catch fire and cause a fire.
If any electrical circuit fails, first check whether the fuse protecting it has blown (see "Mounting blocks"). Replace the faulty fuse. Repeated blowing of the same fuse is a signal for immediate repair of the corresponding electrical circuit.
Attention! It is strictly forbidden to replace a blown fuse with another one of a higher rating, or with a "bug".
To make troubleshooting easier, purchase a wiring diagram for your vehicle.