Quote:
Originally Posted by madmanhiker
I sent this question to Terry..... you raise a good point - but I believe when set to MAP 0 there is a pass through. The BMW techs were just running a diag - NO SOFTWARE was being loaded.....
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See my above post. It does indeed connect to the CAN wires. I understand they are not loading software. For them to scan your car, meaning hooking up to the BMW machine for just diag or whatever, you need to remove those CAN wires from the JB4, even in pass thru mode. If you do not do this, the system will not identify your car, nor see your VIN. They can manually try to hook up by entering the VIN but it will crap out on you and not scan. Trust me. Disconnect the CAN wires and it will work for sure.