Oh also, does anybody know where this 'ALB ECU' is?
I had assumed it was the standard ECU under the seat, y'know the flashy light box

but I can't seem to find a valid link to any troubleshooting for the codes for that? The ones I find don't list ALB at all - but they also list emissions components failures and UK cars didn't have any back then
Is there a separate hidden one just for the ALB system because it was a later-added option or...?