Bosch Troubleshooting!

[Benlingwood]

Hello all! New member here... I have a weird issue with one of our electric bikes.. It has a Bosch Purion Display/Control unit that refuses to turn on the bike. Manually turning on from the battery works, and the display lights up and works as normal including turning off the system... But it will not turn on the bike which is very frustrating. I work on a very remote island and have around 10 e bikes running the same system, i cannot rely on guests to pull the battery cover off the frame to turn the bike on each time so i am hoping someone here may be able to advise. I have tried a brand new spare control unit here and it has the exact same issue... Is this battery related, motor? I took the entire motor and battery out cleaned contacts, checked the wiring & tried new battery's but it has left me stumped.

Look forward to hearing some wisdom!
Many thanks,
Ben

 

[matthewslack]

If you have identical bikes then straightforward to fault find by swapping parts over until the problem moves to the other bike.

Every wire, every connector, if the display is removable then its mount and contacts, all are part of the system.

 

[Benlingwood]

I have just tried the brand new control unit on another bike, it appears to be the an issue with the purion display... weird! Is it maybe a software issue?

 

[cyclebuddy]

I have just tried the brand new control unit on another bike, it appears to be the an issue with the purion display... weird! Is it maybe a software issue?

Maybe?

 

[Benlingwood]

Maybe?

I wish it was as simple as that!

 

[cyclebuddy]

I wish it was as simple as that!

Then you'll probably need a dealer with the CANbus diagnostics software. Probably not easy to find on a "very remote island".