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GMC Envoy 4x4 lights not working will not move from 2w drive


tankrum
01-03-2009, 07:36 PM
We have already checked the fuses and the switch but the switch still isn't getting power. Need some help.

Does the power the power runs to cylinode on transfer case and then to the switch on the dash or the other way?

Any help would be great.

Thanks,:banghead:
maxwedge
01-03-2009, 08:06 PM
Welcome to AF. Switch controls the tranfer case module, remove and reinstall ( key on) the 4wd/awd fuse, see what happens. No year mentioned but 2002 and 2003 had dash switch and transfer case controller issues.
tankrum
01-04-2009, 05:26 PM
We tried what you suggested with the key on but we still don't have any power to the switch. Any other suggestions?
maxwedge
01-04-2009, 08:52 PM
And the year is??
tankrum
01-05-2009, 06:55 PM
2002 GMC Envoy
maxwedge
01-05-2009, 08:10 PM
There are some pretty good wiring diagrams at autozone.com repair guides, do you current across atc fuse 8? Also see this link http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c152800a05ad

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