Hi,

I just bought a 99 Blazer with th Trailblazer Package and the auto 4x4(4 button model). All the lights come on the switch and the tccm clicks when i turn the truck on, but then the auto light comes on and when you press any of the other buttons, the switch does nothing and there are no clicks from the tccm. Can anyone tell me what is wrong?

Thanks,

 

I wish it were as simple as telling you what component has failed. However, that is not the case. Check out the Tech Article (DIY) Index in my signature and read through the NV236 thread in the Transmission & Drivetrain section.