is there anywhere to buy the updated cable? by chance

been looking for it but cant find it

jet 14005 read 07 tahoe it will not read or connect to pcm.
I have usb version. Any advise on what i can do or try?

i have the jet dst 14005 but for some reason pcm will not connect.
Any idea's?
p.s.
thank you dave

Looking for a tune for a 07 tahoe if possible stock engine but want a little more out of it.