Dead electrical

ELLEFSONDA

MEMBER
1994 GMC JIMMY
230,000 MILES

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.

Saturday, August 6th, 2011 AT 5:11 PM

3 Replies

JDL

MECHANIC
16,098 POSTS

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?

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Saturday, August 6th, 2011 AT 5:19 PM

ELLEFSONDA

MEMBER
2 POSTS

Nope starter is dead too.

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Saturday, August 6th, 2011 AT 6:07 PM

JDL

MECHANIC
16,098 POSTS

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?

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Saturday, August 6th, 2011 AT 6:18 PM