i found these diagrams useful so maybe someone else will as well.
i will not post or link dumps.

it took me about a full day to sort it all out. next day, reflashed a cable in about 5 minutes start to finish.
i soldered to the canbus controller because like the picture says, its easier.

you do not need to attach 12v/ground to the regulator, just plug obd2 connector to power source. on the bench this is easy. also plug usb to pc.

ponyprog: http://downloads.sourceforge.net/ponyprog/PonyProg_V207c.zip









5 minute homemade cable. worked great.