I need help with an electrical problem. All the controls on the handle bar have stopped working.

The following controls have stopped working: Blinkers, trip meter control button, horn, heated hand grips, flashers, the ABS warning light is on, and the ABS servos work intermittently. Also the tail light works but not the brake light.

I installed a brand new battery but that did not solve the problem. Bloodworth BMW in Nashville is looking at the bike and said that it might be the wiring harness and wants to install a new $1,400 wiring harness. But they also said that even if they install the new wiring harness it might be one of the controls on the handle bar causing the problem. Sound like an expensive trial and error method.

Has anybody seen this problem before and do you have any suggestions.