[68c10airstream]

Hi Andy, just looked up your info request on a 2003 2500hd 6.0 on alldata pro version and the trans temp thermistor info goes to pcm and is available at the instrument cluster through the class2 serial data. This serial data carries other info, volt gauge info, etc. Your posted link info showed the 2 wires related to trans temp info on a 5 volt reference line to pcm. The pcm analizes all the info needed and sends it out on serial data line. I always compared the serial data line to a phone line, transmitter, receiver and more than one person on-line processing the info. Good luck, Brian F.