horn doesnt work

1991 GMC S15
261,000 MILES
Avatar
DRAZTIKGURL
  • MEMBER
  • 1 POST
the horn does not work on my 91 s15 jimmy i bought a new horn and it still doesnt work. why and what else could it be?
Oct 17, 2011 at 10:54 AM
Advertisement
Avatar
JDL
  • ✓ASE Certified Mechanic
  • 16,098 POSTS
  • ASE Certified Mechanic
The problem is usually in the steering column, wiring. If one electrical wire at the horn, have helper apply the horn, while you use a voltage tester to see if any voltage on the wire. Note the wiring diagram. Check the applicable fuse for voltage. You could check voltage and ground at the horn relay.
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Oct 17, 2011 at 4:02 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
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.