Hello all.

I am new to the forum, just purchased a 2004 H2 yesterday from an auction.

There is quite a few issues that I could not see right away. but most are fairly straight forward and like the abs and traction control light that came on as soon as I left the auction but I am a bit stumped on the issue of the 4x4 lights not working

None of the 4x4 buttons light up and when I try to engage from 4 to 4 lock it does not do anything, no light and no sounds. Tried 4 low by putting it in neutral, and nothing still. Traction control button doesn't do anything either yet tow haul below it does.

I checked the TREC fuse under the hood and its good and the 4x4 fuse in the cab is ok. I did not have a voltmeter with me to check if power is at the fuses.

What am I looking at? Wiring issues? Which there is signs of with some other things, like the blower motor for the heat that somebody repaired by putting a toggle switch in ugh. Isnt there some module for it under the steering wheel? if I remember right my old avalanche had it there.

Any help or a direction to look at would be great.

 

Gord, I would check your Transfer Case Motor, that is the likely culprit, they go out fairly often.

 

The button packs are known to go bad. I would start with those then move onto the encoder motor. The buttons can also act up then work fine, they have issues for some reason. Mine used to act up when I first bought it but never had an issue for ages.