Warning! Before replacing a fuse, it is necessary to determine and eliminate the cause of its burnout. To avoid failure of electrical equipment, fuses with an increased rating or homemade ones cannot be installed.
1. Prepare the vehicle for work and disconnect the wire terminal from the negative terminal of the battery (see "Preparing the car for maintenance and repair").
2. After opening the hood, press the two latches and open the cover of the mounting block.
3. Using the serial number on the body of the mounting block, we find the fuse of the faulty circuit.
4. There are tweezers in the fuse and relay mounting block for removing fuses from their sockets. Squeeze the fuse housing with the tweezers and remove the fuse from the block.
(Original source is on the resource: VazBook)
A faulty fuse can be identified by a burnt-out filament.
Recommendation: Sometimes the fuse thread remains intact, while its connection inside the fuse is broken. It is impossible to visually determine such a malfunction. In this case, you can evaluate the condition of the fuse using an ohmmeter.
5. Install a new fuse of the appropriate rating.
6. If it is necessary to replace the relay, remove it from the unit.
Advice: You can verify that the relay is faulty by installing another relay in its place that is known to be working properly (headlight, rear window heating or window lifter relay).
8. Install a new relay of the same type. In doing so, align its terminals with the slots of the mounting block and press them in until they stop.
9. Close the cover of the mounting block and connect the battery.