Good news. The Brammo is back to live again!
The plan for today was to measure the difference between the U38 temperature component of a correct measuring PCB to the PCB of Module 4 which has been giving faulty readings. For this I had to reassemble Module 4 and put it back into the bike, since I have no other means to power it and check it. I cleaned all the contacts very thoroughly and used nice clean fasteners to mount the PCB back on the module. Then I opened up module 3 to act as the cross-reference. Was feeling a bit bad about that, cause module 3 seemed to be sealed right and function right. However, I had 2 modules to reseal anyway (Modules 4 and 6 are leaking) so having a third didn't make that much of a difference, right..? It was nice to see Module 3 indeed was completely dry inside. No signs of moisture at all. All fittings as new and the paper inside also completely dry. Nice to see!!
After reinstalling the M4 back into the bike things turned out differently than expected. With the multimeter ready to go I switched ignition on but before starting measuring U38 I thought... Lets first see if the error returns,... And it didnt..
It actually came back to life already... See:
https://www.youtube.com/shorts/AR6yiKgjXIk Of course i'm very happy with that! But also feels weirdly unstatisfying.. It doesn't feel I actually repaired anything..
Ah well.. It lives!
But I still had work to do on module 6, which was still unopened in the bike. So dismantled the controller and took out Module 5 after taking out Module 6. I set aside Module 5 since it doesn't have any error codes and so hopefully will be as nice inside as Module3. Module 6 however was bad inside. A lot of water there. I set it onto a tissue to make it visible. I was worried that the PCB might also be affected since this Module is upside-down in the bike with the PCB now in the bottom part of the module. But luckily the PCB seems to sits just high enough up from the actual bottom to not have been reached by the water level. So the PCB is looking OK.
So with the bike working again and the 2 faulty modules up for drying whats left is to reseal the modules. Although I see that Brammo actually really did their best and took a lot of effort and good steps to seal these modules, it clearly wasn't enough. Right now I think I will try to do a better job by using a lot of silicon-sealer, but not entirly sure this is going to be enough. The surfaces, materials and forms of the module just aren't that suitable for a completely waterthight seal to my opinion. Any idea's or suggestions to seal the modules are very welcome!
