Excellent, thanks for that. Over & above the call of duty, Woody!
Searching for BA25, I find a ROHM low drop out 2.5V voltage regulator by that designator in a variety of packages, current sourcing increasing with package size, but none in SOT-23.
https://au.rs-online.com/web/c/semicond ... hTerm=BA25Really weird, not used to not being able to easily find a component by the printed designator.
Getting a bit late here in eastern Aus, but in the morning I'll try to sus out more. If it's a vreg, there's a few ways to skin this cat.
The scooter is wired such that if a charger is plugged in to the charge port, movement is inhibited, whether the charger is on or off. I believe that's because the inhibit line is tied to gnd in the charger. If that's the case and the component (or remains thereof) on my controller is shorted, then removing it may resolve the inhibit condition. If I do need a 2.5V signal, I can certainly find another vreg to do that even if I can't find the part the OEM used.
Thanks so much for your help, Woody!
Cheers
-Brian