05 Drive by Wire PCM
 

I have an 05 Motor/PCM out of a 05 Denali truck with the LQ9 6.0 motor...I ended up having to add a OBD II port because when I bout the full pull out, they did not give me the OBD II Port. Long story short I have the port hooked up properly, but my tuners cannot access the computer because they are getting a connection failed issue.

Does anyone have a way they can check to see if the computer is fried? I am in the Houston area.

Thanks