The VAZ-2123 uses headlight assemblies that combine low and high beam headlights (with single-filament lamps) and direction indicators.
In addition, the headlights contain side light lamps.
The headlight connection diagram is shown in the figure.
The low and high beam headlights are switched on using auxiliary relays K4 and K5, located in the mounting block.
The control voltage to the relay windings is supplied from headlight switch 3 if the switch button 5 for external lighting is fully pressed.
When the low beam is turned on, the low beam lamps light up, and when the high beam is turned on, all lamps (both low and high beam) light up.
Regardless of the position of the switch key 5, you can briefly turn on the high beam headlights by pulling the lever of the switch 3 of the headlights towards you.
In this case, voltage is supplied to contact "30" of the switch 3 directly from the power sources.
Lamps used in the headlight unit:
- - high beam lamp - AKG 12-55 (H1)
- - low beam lamp - H7
- - turn signal lamp - PY21
- - parking light lamp - A 12-5-2 (W5W)
To replace the high beam bulb, remove the protective rubber cover from the headlight housing.
Disconnect the wiring block from the lamp
Squeeze the ends of the spring clip, disengage them from the reflector hooks and move the clip away from the lamp
Remove the high beam bulb from the headlight housing
Install the high beam bulb in the reverse order.
Replacing the low beam and side light bulb
Remove the protective rubber cover of the low beam and side light bulbs.
Disconnect the wire ends from the lamp terminals.
Press the upper end of the spring clip (shown by the arrow), disengage the clip from the reflector hooks and move it away from the lamp
Remove the low beam bulb from the headlight housing
Install low beam H7 lamp in reverse order.
To replace the parking light bulb –
Pull out the lamp socket
Remove the lamp socket from the headlight housing.
Remove the bulb from the socket
Install the bulb in the reverse order
To replace the turn signal bulb
Turn the bulb socket counterclockwise (shown arrow)
Remove the socket with the lamp from the headlight housing.
Press the lamp and turn it counterclockwise clockwise until it stops
Remove the bulb from the socket
Install the indicator bulb in the reverse order
Removing the headlight unit and replacing the headlight glass
Disconnect the negative battery terminal.
Remove the license plate.
Using a 10 mm socket, unscrew the two bolts hidden under the license plate
Loosen the two nuts securing the lower bumper brackets to the body
Unscrew the three screws securing the upper part of the bumper to the upper crossmember of the radiator frame.
Pull the upper part of the bumper forward and up, then, inserting a slotted screwdriver into the resulting gap, press the secret tab of the decorative plastic trim covering the lower part of the headlight
This is the tab that needs to be bent
Pull the edge of the bumper down and, having inserted a Phillips screwdriver into the resulting gap, loosen the screw securing the decorative plastic trim.
Disengage the four latches securing the decorative plastic trim to the bumper and move the trim away from the headlight (the trim is still attached with double-sided tape).
Unscrew the bumper mounting screws located under the trim
Press the two connector clamps, disconnect the wiring connector from the headlight connector
Move the front bumper so that you can access the lower headlight mounting bolts and use a 10 mm head to unscrew the two bolts
Using a 10 mm socket, unscrew the two bolts of the upper headlight mount
Moving the headlight forward, use a screwdriver to pry up the block retainer, disconnect the wiring block from the turn signal lamp socket
Removing the headlight
Install the headlight in the reverse order
To replace the headlight glass
Pry it up with a screwdriver
Remove the seven glass fastening latches
Removing the glass
The connection between the glass and the headlight housing is sealed with a rubber gasket
Install all parts in the reverse order.