So I have done a ton of searching and reading about others issues and solutions to their DSP5 problems.
I have an 2007 2500HD Classic with the LBZ. I installed the DSP5 switch per direction. I had to swap the pins as I was provided one with LB7 ones. I crimped and tinned them with a soldering Iron.
The pins are fully engaged and latched. I have check continuity between the ground wire and ground (good). I also checked the voltage at the back of the switch. The pull down resistors in the switch are working properly and I see it switch through the different voltages.
When I use the Flashscan to log/view the DSP5 PIDs I see a constant 4.98 volts and NonDSP.
I have performed a full reflash successfully (more than once) and when I try to read out the tune it throws an error (as it should)
any thoughts? truck runs great and my cal flash updates of the dsp5 tune seem to work as I have made "trace" changes that are recognizable. (vane position)