2005 GMC Yukon XL Transfer Case Encoder Circuit Issues

Diagnosing and repairing the Service 4X4 notification on the digital dash display

[@jaynstl9408]

Nice video man! I will be doing this to my Tahoe soon too

[@garrycoleman2494]

2000 silverado my lights wont light up on the swith i replace tge switch and still nothing cleaned all my ground same nothibg u think this could be my problem too?

[@carll.freemanjr.9867]

My 2003 silverado has that service 4wd light but you can hear the transfer case shift but I still don't have 4wd. Will it still actuate if the encoder is bad?

[@greyelkwilliams]

I have a 2000 Silverado, I'd has a different transfer case motor. The basic stick thing. I replaced that and the switch in the dash. Yet it is still stuck in 4 hi. I pulled the fuse as I was attempting to get it to switch to 2 hi and it stayed in two hi. Obviously I have an electrical issue. However no idea where that would be. Any suggestions? Lol

[@nickmaiden98]

Did you figure it out? My Silverado is stuck in 4wd Hi too. Buttons won’t flash when I click 2wd or 4lo, just stuck on 4w hi

[@lolar.garcia6466]

Did you ever figure out the problem? Mine is stuck in 4hi. I ca. Hear actuator trying to switch to 2hi, it only flashes. But it's still stuck in 4hi. Help😮

[@alvendetti4600]

i have to push button to auto and 2 wed i cant go straight from 4wd to 2wd.05 gmc sierra

[@tasaman]

Nobody understands what you are asking.

[@jdelgado1877]

What's your scan tool model?

[@shadetree6981]

All good until a week later and your in the same place... At least thats my problem. I've been hunting for bad wires, but starting to wonder if the tccm aint throwing some bad volatge. 🤔

[@JosephVollmar]

Where did you buy your shift motor? It is entirely possible to have a defective part. I will not use Duralast for that very reason.

[@shadetree6981]

@@JosephVollmar I had a motor from a previous transfer case swap that lasted about a week. I bought one from Rockauto that lasted me through the second half of summer and crapped out first ice we had. I ended up buy another cheap one off of Ebay and it's been working fine since December... I did replace the harness that feeds the tccm (motor) and cleaned up some grounds... So far so good. The one from RA did fry.