no lights at 4 button 4 wheel drive selector switch
#1
no lights at 4 button 4 wheel drive selector switch
i have an 04 ls. model type 4.3 v6..4 button style on dash.. no lights at 4 button switch, no noise at tccm, fuse is good, did the remove battery terminal,(also removed fuse),bought new 4 button switch just in case..here's the story...put in 4-low to pull boat from boat launch dock...that was fine...when finished tried to put back in 2-wheel mode lost all lights on switch..now it's like in a neutral state...no reverse, no drive..when i try to put back in park i hear a grinding noise...like its in between a gear mode..i'm totally lost here..it's like no power to switch at dash at all!!
#8
-Then kinda sounds like the tccm is not doing it's job...check the pins for corrosion. check for power.
-swap in a junkyard one
-check this thread for more info https://blazerforum.com/forum/tech-a...ill-help-7180/
-swap in a junkyard one
-check this thread for more info https://blazerforum.com/forum/tech-a...ill-help-7180/
#9
just put another tccm in, cleaned pins and connectors real good...still only a quick flash of lights on switch...no noise from anything...does the encoder motor supply power to the tccm..or is the other way around
Last edited by johnny_gogo; 05-27-2014 at 02:13 PM. Reason: need to add info
#10
That sucks,
My wife is the DD of our mini jimmy, but I think that tccm should click every time you turn the key to on, so I think there is still a problem with it somehow.
I think the encoder motor probably gets direct power from the fuse block, but probably is told what to do by the tccm.
I would probably check for power at the tccm....something blew the atc fuse...so I would find the scematic and trace that out
Good Luck
My wife is the DD of our mini jimmy, but I think that tccm should click every time you turn the key to on, so I think there is still a problem with it somehow.
I think the encoder motor probably gets direct power from the fuse block, but probably is told what to do by the tccm.
I would probably check for power at the tccm....something blew the atc fuse...so I would find the scematic and trace that out
Good Luck