yukon territory
TYF Newbie
I have 1997 yukon 4dr. It has the 3 button dash 4wd shift and am having problems with it not working. The buttons light up at start up and then the 2wd stays lit. When I go to push the 4HI or 4LO neither work or even light up. I crawled under to check the power going to the actuator. I have 12 volts at one terminal in the plug but nothing at any of the other terminals. I tried testing them with the truck off and also with the key on and someone pushing the 4wd buttons and still nothing. Do I only get power there if the encoder moter is working first? I have checked both fuses in the dash fuse box and both are fine. I thought I might have read somewhere about a relay at the tccm but not sure. If so could this be it. How can I test to see if anything is working (actuator, tccm, encoder motor)? Been searching the internet and don't really come up with much of an answer. I am not the greatest at diagnosising everything but if someone can lead me to what I should do or check I would really appreciate it.
P.S.- also bought the truck this way and the guy told me his mechanic said it was the encoder motor and would cost $600 to fix. I want to know for sure so I don't dump more money into it than I need to.
P.S.- also bought the truck this way and the guy told me his mechanic said it was the encoder motor and would cost $600 to fix. I want to know for sure so I don't dump more money into it than I need to.
