GoldenMotor.com Forum

I found no evidence that the controller was faulty, only that it had illogical values ..... the controller was declared faulty by Golden Motor engineers immediately, without exploring other possibilities ...
I'm planning to hire an expert to open it and see if there is any damage to the contacts from moisture or corrosion becouse the controller has not been used last 3-4 years (only 10-15 minutes worked )
I'm disappointed with GM, they don't do their best to help us customers ...
When I have news, I'll report ...
Greeting,

sorry for confusion. I as of right now I only have 1 12v car battery, wanted to try to connect it to the plate to see if I can connect and change the setting. The question is what pin on the plate will likely be the positive and the negative. It is a 5 pin plate. as I understand positive is most likely to be furthest to the right on the plate (plate is mounted in "bottle spot") that is looking from atop down onto the plate

Thanks for the update.

Unfortunately, I don't know of anyone with the electrical expertise to repair a failed VEC-500 controller, but it might be worth asking on the Endless-Sphere forum.

Alan

Same with me...

Were you able to determine WHY you lost throttle 5vdc input power when connecting your motors hall connection? Or did you find other definitive proof that the controller is bad?

Ok, will try, but the connector plate for the battery, where do I try to set power to (far right and far left?)
There are 5 pins on the plate.

Alan you are a mensch as always. If I take the battery off the bike and turn it on, it lights up with 3 "bars" as normal. IF I put it on the bike and turn it on (it has a on/off switch) it lights up the same 3 bars as normal for about 3 sec, then it lights up one green and one red. After that it does not allow me to connect to the bike controller to change the regen from open back to closed. The bike did regen recharge the battery before I changed that setting (in downhill when activating the brake slightly). After I made the change (thought it was a "mistake" that the setting was closed) the bike became sloooow with a LOT of resistance when downhill. Before going downhill the thumb throttle worked fine, but as soon I went downhill and activated the brakes, the bike shut off and the one red and one green light on the battery came on.  I have tried several times to turn on the bike with the phone ready, to no avail. When I click the "connect" button in app I go directly to settings page where a lot of "unknown device" shows up. None of them say GM. I guess there is no "pin hole" like on computes CD rom drives or modems to reset. Could I try to double up two 12v car batteries to get 24v to try to connect that way?
I suspect the battery BMS is preventing me from connecting, battery did not like the regen setting on open.
But since the bike was set to 48v I probably will not be able to connect even with 24v. I really do not want to have to go buy 2 more 12 car batteries to get 48v.