My wife generally uses PAS 1. We are in a level paved community so, no. Rarely uses throttle.

Wife?s Mini has started to fail to turn on unless the key is inserted, turned all the way to battery lock release, then back to on. Once it is turned off at the handle bar switch or timed out due to inactivity, it will not turn on unless you cycle the key again.
Any ideas?

Ok. I got it. There is a setting in the display for how bright the tail light is. 0 - 5. I don?t have a wire fed tail light on my Mini. The setting was set to 0 so I changed it to 5 and now it works. I also now have cruise control and the ability to change so many aspects on the bike I never had before. Just need to keep in mind most setting will likely affect battery life so keeping that in mind, reducing available speed, speed at start up et al?
It was a tight fit stuffing all that back into that compartment, and threading the motor plug through the hole was just so bad, I drilled a new hole on the side of the compartment and made a world of difference. I smoother out the hole and wrapped thick Gorilla Tape around the edges to prevent scraping the cable. All in all, a worthy upgrade of an otherwise obsolete Rad Mini.

UPDATE!
I ordered and received the 25amp Rad controller/display upgrade from Electro Bike World. Had to order a wire harness elsewhere. Once I received the controller, noticed the new battery plug on the controller did not match my ?older? Mini battery connector. They did have an adapter to cut the stock to battery plug and I soldered the new one right at the battery tray connection. No issues if you keep the new connection tight so it will still fit in the space behind that connection plug.
Anyway, did a quick test and it came back to life. Adjusted a couple settings in the controller to get US numbers.
My only issue now is the headlight will not come on. Not sure if there is a setting in the controller.
Anyone know? My next task is to fit it all back inside the compartment. The motor plug is a biatch to put through that hole.
I hear it?s tight but doable.

Im finding out no replacement controllers will fit inside the housing, I did order a replacement wire harness from Zipee. Will see if that does it before I have to oreder the controller display combo.
Are they waterproof. Anyone know?

Thanks for helping. So far, all the controllers are too large to fit into the existing compartment of the bike. Don?t really want to zip tie it to the frame and then not be able to ride in the rain or wet roads or need wiring extensions. They also seem to require a new display. I can do that but only if I must. The old controller is is 4 3/8 X 1 3/4 X 1 7/8?.

Having quite a bit of trouble finding the wire harness and controller for my Mini. Error 30. Hooked wifes display to bike, same issue after 8 seconds, so it?s gotta by harness and/or controller.
Can someone point me in the direction?
Thanks in advance.