Title says it all, according to SLABS I'm not in LOW on the transfer case and thus cannot use HDC. I've been looking through RAVE wiring diagrams only to find nothing. I know the pin that supplies the SLABS computer with the input, but that's where it stops.

Anyone know why my transfer case is not supplying the low signal to the SLABS?

 

Most likely a duff switch on the transfer case, its located by the side of the front output housing, worth checking out the connections and maybe remove the switch and test it.

 

Thank you! will give that a try in a bit.

 

Fixed! thanks for the picture it solved this. The switch is directly above the drive shaft and it has a gray plastic weather-pack connector. I took the connector apart cleaned out the muck, shot some dielectric grease and it works now.