My service 4 wheel drive light came on and I don.

ANONYMOUS

MEMBER
2003 GMC ENVOY

My service 4 wheel drive light came on and I don't have4 wheel drive I replacedthe drive mtor and the modules lastyear and had it reprogrammed but it has the same symptoms as before. I check the fuse and relaced the switch again bt no change is there a way to reset the 4 wheel drive without taking it to a dealer again

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

You need to have the computer scanned to see what is causing the light to come on. Try a nationally recognized parts store to have it scanned. Most will do it for free.

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Friday, January 18th, 2013 AT 1:25 AM

GEORGE POTTER

MEMBER
1 POST

Because a local parts store scanner wont work on the 4 wd system. You need a repair shop or dealer with a more advanced scanner. I already called them and that was their exact words.

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Monday, December 21st, 2020 AT 10:04 PM

DANNY L

MECHANIC
5,648 POSTS

Hello, I'm Danny.

Yes, that is correct. With all the different systems on vehicles these days a scanner or code reader has to have numerous system capabilities to provide diagnostic checks for multiple systems. Auto parts stores like AutoZone or Pep Boys may be able to provide you with a basic 'check engine light' codes but the rest are specialty. Thanks for adding to this thread to save someone some time in the future when deciding what to do when particular system codes need to be diagnosed or how we can help them. Thanks for using 2CarPros.

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Wednesday, December 23rd, 2020 AT 10:21 PM