Dead electrical

1994 GMC JIMMY
230,000 MILES
Avatar
ELLEFSONDA
  • MEMBER
  • 2 POSTS
I have a 94 GMC Jimmy. None of the dash lights/electronics are working. The only electronics that seem to be working are: the head lights and the dome light. Battery is good 12.7V. Battery cables look good.
Aug 6, 2011 at 5:11 PM
Advertisement
Avatar
JDL
  • ✓ASE Certified Mechanic
  • 16,098 POSTS
  • ASE Certified Mechanic
Forget about electronics for a minute. Will the starter crank? If it won't, use a digital multimeter across battery posts, have a helper turn the key to crank, what is the voltage reading?
Aug 6, 2011 at 5:19 PM
Avatar
ELLEFSONDA
  • MEMBER
  • 2 POSTS
Nope starter is dead too.
Aug 6, 2011 at 6:07 PM
Avatar
JDL
  • ✓ASE Certified Mechanic
  • 16,098 POSTS
  • ASE Certified Mechanic
Can you do the test I asked you about? The battery voltage reading with key in the crank position? Make sure battery cables are clean and tight. Check fusible links, The positive battery cable should lead to fusible links. The way to check a fusible links is too check voltage on both sides of link.

You may have to check feed to and from the ignition switch. Do you have voltage at the fuse box?
Aug 6, 2011 at 6:18 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.