Question about 1999 GMC Sonoma
Drivers headlight had a leak and filled with water, since bright light issue had light assembly has been replaced and all connection cleaned and dried and applied electrical compound. and a little wd40 where i could not reach
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Posted on Jan 02, 2017
You really need to have it scaned by someone with propre equiptment. If it is a body module it will be around $500 for the part. Then it will have to be programed at a dealer. Really before you spend that much get it checked by a shop that knows computer systems. Good Luck
Posted on May 17, 2009
the only connection between the two circuits is the common ground at the taillights, check those sockets for proper ground
Posted on Nov 05, 2010
GM has had more that their fair share of transfer case problems. I have also seen may problems caused by addition of aftermarket equipment - especially remote starters. There is a good chance that you have a damaged transfer case, but if an electrical problem was the root cause of the damage, you will only destroy a new transfer case if the electrical problem is not resolved. If the mechanic that you are going to does not have the proper equipment and/or information to diagnose your transfer case control circuits, you should consider getting a second opinion from the dealer before buying a new transfer case. I currently work in an aftermarket shop. There are several of the GM 4 wheel drive systems where the manufacturer has not released the information necessary for an aftermarket shop to properly diagnose and repair the system. Some mechanics are simply to proud to say "I can't" or "I don't know".
Posted on Jan 22, 2011
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