Originally Posted by
DURAtotheMAX
no....no....NO!!!!!! OMG how many times do I have to explain this. I dont know why I even bother anymore.
LBZ used high speed for ECM, TCM, GPCM only. THATS IT!!!!!!! NOT THE BCM, NOT THE ABS, NOT ANYWHERE ELSE.
LBZ ECM and LBZ Allison TCM speak both GMLAN and Class 2. They speak Class 2 to the body and everything else, and GMLAN amongst themselves.
Just look at the freaking schematics. You dont have to know anything about GMLAN or Class 2 databusses to understand this, its not complicated. All you have to do is know how to read a simple basic electrical schematic.