Short first started when disconnecting trailer harness, vehicle was dead, jumped and had multiple service warnings (stabilitrak, 4wd, power steering, braking, reduced engine power, etc.) and would cause cluster gauges to all bottom out to 0 even while driving along with dozens of codes. Sometimes occurred when hitting brakes. Changed battery multiple times and replaced trailer brake module and still occurs. Took it to dealership and they said it was most likely suspension control module, replaced, reprogrammed and issue is still happening.