How does the dimmer switch on a headlamp work?
Also, the headlamps work regardless of ignition switch position. The dimmer switch selects either high or low beams, but not both. Overcurrent protection is provided by a circuit breaker, integral to the headlamp switch, which supplies current to all four headlamps.
How do you check the headlight relay operation?
Turn the ignition switch on and press the intelligent tester main switch on. Select the item below in the active test and then check the relay operation. Remove the head ll fuse and head rl fuse from the engine room no. 2 Relay block. Measure the resistance of the fuses. Remove the headlight relay from the engine room no. 2 Relay block.
How many relays are in a headlamp control circuit?
Fig. 2 on page 36 is a simplified representation of a more modern headlamp-control circuit from a late-2000s Asian vehicle with composite headlamps (separate low-beam and high-beam bulbs) and daytime running lamps. This circuit uses four relays, and the left and right headlamps (both the low-beam and high-beam bulbs) are individually fused.
How does a dual filament headlamp circuit work?
The bulb current passes through the column-mounted headlamp switch. The headlamp switch will provide either high-beam or low-beam operation, but not both at the same time. This is typical of dual-filament headlamps. There are no relays or modules in the circuit, and the headlamps work regardless of the position of the ignition switch.
What kind of wire does a headlight dimmer relay need?
The relay MUST HAVE POWER to the #30 terminal to operate. If your wiring does not have a power wire to the #30 terminal a “jumper” wire can be run from the #56 terminal to the #30 terminal. 111941583 Headlight Dimmer Relay,12V 5 prong. Replacing the Headlight Switch (and most all the VW Switches) is very simple.
Where does the power come from for a headlight relay?
The main power from the battery feeding the fuse and relays should be a nice large gauge wire as indicated. This run to the battery is typically much longer then the run from the relay to the headlights so it’s gauge must be thicker.
Also, the headlamps work regardless of ignition switch position. The dimmer switch selects either high or low beams, but not both. Overcurrent protection is provided by a circuit breaker, integral to the headlamp switch, which supplies current to all four headlamps.
What is the relay number on a VW headlight?
111941583 Headlight Dimmer Relay,12V 5 prong. Replacing the Headlight Switch (and most all the VW Switches) is very simple. The headlight terminals are numbered, their designations are: 311941531B VW Headlight Switch. Replacing the Headlight Switch (and most all the VW Switches) is very simple.