Sound signal switching circuit: 1 - socket for a portable lamp; 2 - sound signal; 3 – sound signal switch; 4 - fuse block.
Sound signal - type C-308 or C-309. It is fixed in the engine compartment on a bracket to the radiator frame panel. It is activated by the central button of the steering wheel. The switch contact ring is attached to the steering wheel, and the spring-loaded contacts are attached to the steering column switch connector. If the signal sound becomes weak and hoarse, adjust it by turning the screw on the case in one direction or another.