4x4 button lights not working
#1
4x4 button lights not working
I am new to the forum and having some issues here. I have a 1999 chevy blazer 4 door 4.3 v6 with push button 4x4. My problem is my 2hi, 4hi, and 4 lo and my auto 4x4 lights on my buttons aren't lighting up. They flash when you start the blazer but that's about it. I have checked the 10 amp fuse and the 20 amp atc fuse. I have also checked wiring connections behind the passenger kick panel and also went under the blazer and checked on the transfer case for a loose plug or vacuum line, but no luck there. Anyone have any ideas on what could be causing this?
Last edited by jabbadahutt; 12-30-2010 at 03:43 PM.
#2
Is you service 4wd light on? Have you tested the resistance of the switch and the wiring from the switch to the TCCM?
#3
Update
The service 4x4 light was not on. I tested the switch and it and it was bad. Go figure the one part i didn't check. Tyvm for the help.
#4
a new switch should run you less than $8 or so at a JY. just bring the multimeter.
#5
Update
Sorry about the previous post about it working, my wife must have done that while i was troubleshooting and misunderstood what i had said. I checked for my service 4x4 light and it is not on, i did find a spare working switch to change out, but it didn't work. I tested my wiring from the dash switch to the tccm and everything tested fine. Could this be a bad tccm by chance? I also rechecked all fuses connections vacuum lines etc... I'm just short of sending the darn thing to a GM dealer lol.
#6
hmmm.. when you checked the TCCM did you look for corrosion on the connects? The way the A pillar is situated, and where the wires plug in, there is a running issue (from time to time) with moisture leading to corrosion in the connectionsl...
if so, clean it up as per normal...
otherwise, you might take a peak at your encoder motor 9the connections there I mean. But if that was shot it should have tripped your S4X4 light
if so, clean it up as per normal...
otherwise, you might take a peak at your encoder motor 9the connections there I mean. But if that was shot it should have tripped your S4X4 light
#7
How far off were the resistance values for each button push?
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