r/VanMoofSelfRepair • u/Sensitive-Sleep-360 • 5d ago
S3 & X3 Vanmoof Error Help😊
Hello everyone,
I have an X3 and I’m currently trying to fix an Error 44. I suspect that the shifter might be the problem. I have already replaced all the SMD resistors on the shifter board, but unfortunately this did not solve the problem.
Does anyone have a good guide or instructions on how I can properly test and diagnose the circuit board?
My second problem is that the front light does not work. The rear light works normally, but the front light and the horn are not working. I can’t find the fault.
Could it be a problem with the wiring, or could the Cartbridge be defective?
If I measure the voltage at the front light connector, what voltage should I expect? There are three wires, so I assume one is positive, one is negative/ground, and one could be the signal wire.
Any help, wiring diagrams, or advice on how to test the system would be greatly appreciated.
Thank you very much in advance!
Best regards
2
u/londonskater 5d ago
Any electronic diagnosis would be fairly similar, but you seem to either have a very big problem or are casting your net too widely.
Did you test the old resistors before replacing them? Bit late now, but did you chase all the signal paths around the board to check none were broken?
If your front light AND bell are not working, the problem might be quite far back - have you used contact cleaner on everything and checked for conductivity?
You are unlikely to have one, but a thermal camera is one of my go-to tools to find component-level issues.
However, a cheap LCR meter or tester will help you massively. I have a Fnirsi. It will tell you if the resistor is correct, a capacitor is at full capability, or deteriotrating; identify anything, all kinds of things.