As simple as the system should be, it isn't. With what you have done so far, it looks like you only have a few possibilities. Control of the relay is done by the rear integration module grounding it, and that appears to be what is missing. It grounds the relay in response to messages sent to it on the data line, this is where the integration of the keyless path, and the door switch path, is made. You should be able to verify that you have two powers at the relay connector, and then you would almost need a scan tool to read data and see if the RIM is getting a trunk release request. If it is, then you could have a bad RIM, missing power on the control side(which is on the same fuse through a joint connector in the fuse block), or an open ground circuit between the relay and the RIM.
Monday, August 31st, 2009 AT 9:58 PM