Mooseman... You're a guy that seems to know things... here is where I'm at:It may or may not work. As per my first post on Tis2000:
Since it's an NBS (a late 2007/2008), it may not have been included in the last update of Tis2000.
This will become more and more the situation as older trucks die off and newer ones replace them. We won't be able to use our Tech 2 with Tis2000 to update modules. We may need to do some research on other software or methods.
- Got the Tech 2 and all the downloads etc, I think the computer and Tech 2 are squared away.
- 2007 GMC Sierra 2500HD Diesel SLT
-Problem - The passenger side mirror controls, door lock, heated seat controls, and backlighting in the switch modules don't work/respond. (I also noticed - oddly, that when you open the door at get in - I can hear the radio acting like it's searching/playing a dvd or cd... everything is off, but it appears to be "running"
- I was able to hook up tech 2 and go into diagnostics and go to passenger door switch (PDS) menu and force all these door functions to work (which was one of the greater thrills of my life)
- I have replaced the PDS with a new one and it behaves EXACTLY the same as the old one - making me think it's not that.
- I got a new body control module (BCM) and swapped that out - to my surprise the truck started right up - all the functions in the truck worked just like before with the old one, including the messed up passenger side stuff, but the radio showed theft system activated message (Theft lock, I think)
-When I tried to use the tech2 to get to the BCM, (both the old and the new) I can usually get to it, navigate to a special function menu and select a component in the list to manipulate (like rear door windows) but immediately after you select it and it starts to show the screen where you can manipulate it the tech 2 goes to a screen that says there is no connection.
-When you try and use TIS to reporgram the BCM (you have to select ECU in the software menus prior to when TIS tells you to connect everything together) it searches for a bit - clicks inside the CANdi - and tells you it cannot connect.
-Same connection issue when you attempt to connect to the "powertrain" from the tech 2 menu
-In some cases it tells you it has no connectivity to the VCIM/Onstar module
I'm running out of ideas but This is what I figured I'd try:
-Pull the radio unit (its possible the previous owner put in an aftermarket and then before selling took it back out in put the factory back in?) and see if it was the causing the stroke like symptoms on the passenger side
-Try the "old body style" menu options in TIS to again attempt to reflash the "old" BCM with the "old" PDS installed
= Is there a function for a test of the various modules (ECU, VCIM, etc) so that I can test them directly to see that they are "good" units?
= Any thoughts on my situation/plan?