Ok so iv got the VCM out of my 2004 2500hd chevy truck, in-which has licenses/ credits already applied and has been for the last 5+ years.. While the VCM is in the truck, it shows everything is ok and i can flash it no problem.. But when its on the bench flasher it says i do not have licenses to access the VCM.. Im thinking i must have made the harness wrong maybe, this is what iv done..
Blue VCM Connector Pin 1 Ground connected to OBD2 Pin 4 & 5. Then Blue VCM Connector Pin 19 & 20 12V Power connected to OBD2 Pin 16. Then Blue VCM Connector Pin 58 Serial connected to OBD2 Pin 2.
Or also i was thinking maybe there is something else that stores the credits in the truck i need to pull out and connect to the bench flasher ?
Or maybe i need to connect Blue VCM Connector Pin 57 to a 12V power too ?
http://lt1swap.com/2004vortec_pcm.htm
Or something on the Green VCM Connector i need to connect too ?
http://lt1swap.com/2004vortec_pcm.htm