Finally back in an H2...I have a few questions!

[Dug]

THis might help you , on your electric brake controller .
http://brandon.fuller.name/archives/...3/07/17.16.03/

[tomp]

That link is false. You can wire it up using an OEM wiring harness adapter available from GM at your dealer, so you don't have to cut/run wires. In 06, the pin-outs changed. So for 06 or later year models you will need to re-do the wiring harness to match that of the pins in the panel under the dash.