Hazard warning and direction indicator relay (VAZ-21051)

For the wiring diagram of the direction indicators and hazard warning lights, see subsection 12.9.

Flasher relay 6 is designed to receive an intermittent light signal from the direction indicators both in the hazard warning mode and in the direction indicator mode, as well as to check the serviceability of the direction indicator lamps. If the lamps are in good condition, then in the direction indicator mode it creates a flashing of the control lamp 7. If the lamps are faulty (burnout or break in the lamp circuit), then the flasher relay provides a doubled frequency of flashing of the control lamp.

The relay-breaker is mounted under the instrument panel on a bolt welded to the wall of the air intake box. A faulty relay-breaker cannot be repaired and must be replaced with a new one.

The flasher relay must ensure flashing of the direction indicator lamps at a frequency of 90±30 cycles per minute at a nominal load of 92 W, an ambient temperature of -20 to +500°C and a voltage of 10.8 to 15 V.

Until 1985, the 23.3747 type interrupter relay was used, assembled on integrated microcircuits. Since 1985, the 231.3747 interrupter relay, made of discrete elements, has been installed.

The characteristics of both flasher relays are the same. The external difference is the absence of plug "5" in flasher relay 231.3747. The supply voltage is supplied only to plug "1". Therefore, the brown wire connecting plug "5" of the flasher relay to plug "6" of the hazard warning switch 9 is not needed. Flasher relay 23.3747 ensures constant lighting of control lamp 7 in the event of burnout of any of the turn signal lamps or a break in its supply circuit.