Originally Posted by swartlkk
Before you assume the encoder motor is the problem, run through the proper testing. Start with getting the codes from the TCCM (OBD2 Non-Automatic Transfer Case Diagnostics
). It could be corrosion at the encoder motor. It very well could be an encoder fault, but it is easy enough to check the codes.
I just bought a 99 Blazer a couple hours ago with this same problem. Mine has the 3 button switch.
#15 Fuse keeps blowing out (for the 4x4).
What does TCCM stand for ??
I assume the encoder motor is which does the actual shifting in the transfer case ?