Every time I start the car, I get a "Service Active Dampening System" error message. Scan tool shows a DTC of U0139-00 "lost communication with active damping control module". I tried swapping the controller with another unit, but that didn't fix it. I figure it either lost power or ground, but this thing has 80 wires going to it.
Where can I get a wiring diagram for this so I can check power and grounds first before bringing it to a dealership?