Good luck!
I've had myriad issues with my 2 cruise controllers...
No help from GM China..
Some help from a dealer, but THAT help was to BUY another one from them at a discounted rate..
I shouldn't need to spend more money on a device that cost me $90+ in the first place and is obviously a faulty device riddled with problems..
One controller, the throttle control ON THE CONTROLLER SIDE went bad, and Tom from GM china REFUSES to believe me and has me testing out things totally unrelated to the throttle. At this point I've asked him for a replacement and no response in over a week..
The second controller, my regen stopped working too..
After two weeks of regen not working and still no response from Tom on either controller, the main positive power lead (spade terminal ON the controller) broke off..
So now I have two magic controllers that are completely dead after only a year worth of use...
I should NOT have to buy a new controller EVERY YEAR.
I NEED THOSE CONTROLLERS FIXED OR REPLACED.
On your controller, the ONLY THING I can think of is that MAYBE your wires are loose on one the phase wires or on the main power lead..
You may have a loose connection like I do.