On my 98 blazer my 4wd won't work. The dots next to the letters won't light up at all. Ive replaced the tccm, switch and encoder already and still nothing. Any suggestions?

 

Either one of the 4wd fuses or the wiring?. 3 button or 4 button auto transfer case?

 

All of the fuses are good. I put new fuses in to make sure. 3 button

 

new ATC fuse in under hood center and 4wd fuse on left side of dash? Do both fuses have power through them? Does TCCM have power to it? TCCM drives the button lights. There is a tech sticky on 4wd diagnosis that includes wiring diagrams. Ask if any questions not answered there.

 

I haven't checked to see if I was getting power to anything yet. I'll check that tonight. Thanks for the help

 

I replaced the ATC fuse. I checked of both fuses are getting power and they are.I haven't checked the TCCM yet