Tongsheng Tsdz2 errorcode E02

[Arjan]

Three years ago I bought a Tongsheng TSDZ2 with a 52v battery and vlcd5 display. After 800km the errorcode e02 appeared for the first time. In the beginning, it disappeared when you stopped pedalling. But the problem returned more often and often. Disconnecting speeds ensor helped for a short while, but at the end moving the pedals was enough to immediately stop any assist. I couldn't find any solution on the Internet. I also have to admit that my technical knowledge isn't very advanced. Two weeks ago I decided to buy a new one, being fed up with this problem. I bought the 48v version with the vlcd6 display and kept my 52v battery. Today, the first test ride, and already after 5 km the errorcode E02 appeared again and the assist stopped. There must be a technical solution to this although to me it looks like someone put a spell on me. Help me please!

 

[andrea_104kg]

The same, fist ride after 10 km torsimeter do not work, walk assist work.
i have the new firmware 20 01 c1

 

[Kelso]

I know this is old, but if anyone stumbles on it looking for info I'll share. No guarantee it's the same, but I got this list of error codes from GoTrax which uses a Tongsheng controller. Had the same fault 02 due to a shorted controller.

0
normal status
2
Short circuit protection
3
Controller failure
4
Handlebar failure
5
Motor phase loss
8
undervoltage
9
overvoltage
10
Motor Hall fault
30
Communication reception failure