Head light not working.
We have 1 high beam headlight not working. We replaced the bulb, checked the fuses. What else could it be?
Forum Discussion
You need to test not guess.
A cheap test light probe. Available at any parts store.
Remove the electrical plug to the rear of the lamp
The cord of the test probe has an alligator clip. It needs to connect to ground
Find a ground and then shine it up with rough sandpaper
Beware of selecting metal not connected to the frame, or the test won't work.
Switch on the headlights. Verify the other headlamp is lit.
Stick the needle probe into all three terminals on the headlight wiring PLUG
No light? Advance to wiring diagnostics.
If the test light lights up, you have a ground wire problem
Note which wire the test lamp lights up on
Switch dimmer switch to other beam. Note the other headlight
Does the test light now light up on a second terminal of the headlight plug?
The REMAINING terminal is the ground and it's connection to ground is damaged.
A cheap test light probe. Available at any parts store.
Remove the electrical plug to the rear of the lamp
The cord of the test probe has an alligator clip. It needs to connect to ground
Find a ground and then shine it up with rough sandpaper
Beware of selecting metal not connected to the frame, or the test won't work.
Switch on the headlights. Verify the other headlamp is lit.
Stick the needle probe into all three terminals on the headlight wiring PLUG
No light? Advance to wiring diagnostics.
If the test light lights up, you have a ground wire problem
Note which wire the test lamp lights up on
Switch dimmer switch to other beam. Note the other headlight
Does the test light now light up on a second terminal of the headlight plug?
The REMAINING terminal is the ground and it's connection to ground is damaged.
