Steve,

Now that I think of it, the reason I am looking for the brake/throttle harness is that the display does not come one. I have 2 E+ systems, so I am able to swap parts around. I discovered that the problem existed for both battery/motor sets when I used one brake/throttle harness, and did not happen on either when I used the other harness. I have not yet figured out what is different about the bad harness.