Well, after finding that there was no communication w/ the right rear wheel I went ahead and replaced the hub assembly. ABS light still on. I metered out the cars harness and see about +5 volts with the key on, and it slowly drops to 0 once the key is off. I've checked the harness at the back and it seems fine, and nothing out of place up front on the controller. What else could it be? Where do I need to check? I'm running out of time on this as the plates are up at the end of Sept. and it won't pass safety w/ that annoying light on. I've been fighting this thing for a month now and have run out of options.