Are the HP Tuners Scanner channels available to any OBD2/CANBUS device?
I'm a little confused about what's available on the CANBUS pins on the OBD2 connector. In my case it's a E39A ECU running a GM LFX engine. I want to run a digital dashboard like a Haltech IC7 or AEM CD7, etc. Most dashes offer an "OBD/CANBUS" option that just plugs into the OBD2 port. Can these devices see all of the channels that I can see/find in VCM Suit Scanner or does HP Tuners have some secret sauce allowing more functionality? Are they monitoring the ECU's canbus directly or would they be polling for OBDII PIDs?