Wiring Diagram for 99 Silverado

99GoldSilverado · March 3, 2004

This has probably been asked and answered (but I can't find it )

I am trying to find a wiring diagram for a 99 Silverado. I have checked every post I could find (also all the installation websites linked to in posts). None of the diagrams contain what I'm looking for. I need a COMPLETE schematic for the entire truck. Any help will be greatly appreciated

Mega Dogmeat · March 3, 2004

I think you're probably gonna have to order a GM Service manual for that one ...

AZ-Z71 · March 3, 2004

Here try this link.

GM Upfitter

I found this on here once before and they do have some electricals for the new body style pick ups.

silverado4800 · March 3, 2004

A Haynes service manual has complete wiring diagrams. They are at most auto part stores.

99GoldSilverado · March 3, 2004

Checked the Upfitter site AZ, a lot of info about electrical system but couldn't find any diagrams. Guess I'll have to find a Haynes or GM service manual. Thanks y'all.

karld · March 4, 2004

You can also check out ALLDATA.com its an excellent site although you will have to pay $24.95 to access it. It is well worth the money because it has every print and whatever else you might need to know about your truck.

AZ-Z71 · March 4, 2004

What exactly are you looking for. I have the GM shop manual on the computer but they break the wiring diagrams into about 40 seperate ones, like body controls, wipers, lights.... I believe as a whole it is all there but it would take some time to open every section and pull the diagram to make one total complete. I'll check around some more.