My headlights don't come on. Every other light works except for the headlights. The driving lights are working but no headlights.
Jan 30, 2015 at 1:06 PM
1995 GMC Sonoma Lighting Electrical
1995 GMC SONOMA
EFAIN1
- MEMBER
- 2 POSTS
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JDL
- ✓ASE Certified Mechanic
- 16,098 POSTS
Could be headlamp switch or dimmer switch or wiring. Note the wire colors in diagram, check for voltage. The diagram is for composite lamps.
As you can see, the headlamp switch sends voltage to dimmer switch on yellow wire. You can see wire colors for high and low beam.
Any work on steering column and you need to disarm air-bag, where applicable.
As you can see, the headlamp switch sends voltage to dimmer switch on yellow wire. You can see wire colors for high and low beam.
Any work on steering column and you need to disarm air-bag, where applicable.
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
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Jan 30, 2015 at 2:27 PM
Hey thank you! I appreciate the help. Where are these switches located? When this happened I heard some ticking from the glove box, I found some relays there I replaced the one that seemed to operate the lights and the problem still exists.
Feb 6, 2015 at 1:41 PM
JDL
- ✓ASE Certified Mechanic
- 16,098 POSTS
Your headlamp switch should look like the picture. Your dimmer switch should be part of multifunction switch on the steering column.
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Feb 7, 2015 at 11:39 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.