It looks like it should be plug and play. I am assuming that the wiring from the etac card to the bottom of the handle is good. I am going to do some more looking but the only thing I see for that code is either the switch/pot or the etac card. It looks like you need a service key to see if the etac is communicating with the controller.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.