1. We prepare the car for operations (see "Vehicle preparation for maintenance and repair").
The location of the lamps in the sections of the rear light VAZ-2104: 1 - side light lamp type A12-4-l (T4W); 2 - fog light bulb A12-21-3 (P21W); 3 - direction indicator lamp A12-21-3 (P21W); 4 - spring latch of the lamp; 5 - reverse light lamp A12-21-3 (P21W); 6 - brake light bulb A12-21-3 (P21W)
2. Disconnect the wire from the negative battery terminal (see "Battery - removal and installation").
3. socket wrench by 8 mm with a deep head and an extension from the luggage compartment, through the holes in the body, unscrew the two nuts securing the rear light. The nuts are located in the cavity of the body so that they are not accidentally lost; we place a small amount of grease or plasticine in the key hole.
4. We take out the lantern from the opening of the body, disengaging the spring clips pressing the lantern to the body.
5. Having pressed the lock of the wire block, disconnect it from the contacts on the lamp board.
6. With pliers or a hand, we alternately squeeze the petals of the two clamps and remove the board from them.
7. Disconnect the board with lamps from the lamp housing.
8. We remove the faulty lamp by drowning it and turning it counterclockwise.
Installation
1. Before installing the lamp and the board, we wash and clean the contacts of the board, the lamp socket and the wire connector block from dirt and oxides.
2. Assembly and installation of the lamp is carried out in reverse order.