How do you hook up a headlight switch?
How do you hook up a headlight switch?
Hook up the existing headlight wires in the proper order, consulting your wiring diagram for which wire goes where. You can also do this, through trial and error, by connecting the wires until the headlights and driving lights come on when the toggle switch is turned on.
How can I test the headlight switch?
Test the headlight switch by turning it on and seeing if the headlights come on. The switch should have three positions: one for off, one for the driving lights and the other for the headlights.
What to do if your headlight switch does not work?
This design helps prevent heat and premature failure of the headlight switch. If the parking lights work, but the headlights do not, the headlight relay may be at fault. Try swapping the relay with another relay in your fuse box. If the headlights start working, replace the faulty relay.
Where is the ground for a headlight switch?
If there is a ground wire that goes to the headlight switch, or steering column on the wiring diagram, you can use that for your source of ground. Otherwise you’ll need to locate a good body ground on the firewall, driver side kick panel or frame of the dashboard. The wires you’re about to test connect directly to the body control module.
Hook up the existing headlight wires in the proper order, consulting your wiring diagram for which wire goes where. You can also do this, through trial and error, by connecting the wires until the headlights and driving lights come on when the toggle switch is turned on.
When do you need to replace the headlight switch?
If the high beams, daytime running lights, or headlamps are not working consistently, you may need to replace the headlight switch. 1. Issues switching between modes
Test the headlight switch by turning it on and seeing if the headlights come on. The switch should have three positions: one for off, one for the driving lights and the other for the headlights.
How does a headlight switch work on a car?
Most headlight switches operate by pulling the lever backwards and locking it into place to activate the high beam headlights. Over time however the switch can break, which can lead to issues keeping the high beam headlights turned on.
