TSDZ2b dead controller or display?

[Iippo]

Yesterday I decided to shorten the display cable and battery cables from my TSDZ2. While doing that, I short circuited the power cables that go in to the motor. The battery was not installed, but I saw arcing between the cables, and heard a cracking sound. So there still was plenty of current in the motor capacitors…

After I was finished with wiring, the motor did not assist at all. Display turns on, but it only shows one bar of battery although battery is full, and it does not assist. The walk assist mode works neither.

What do you think I broke? Display or the controller?

 

[docw009]

I bet you took a wire stripper and cut the harness? Yes, there's two battery voltage, ground, two serial data lines, throttle input, and a 5V power. You probably bridged 36V or 48V to one of the data lines. This probably blew up transceiver chips at one or both ends. Bad luck.

 

[Iippo]

No, I just short circuited + and -, the wires from battery to motor, with no battery installed.