The fluid level may be low and when you accelerate, the fluid moves and the sender thinks the resovoir is empty. This happened to someone else on here recently. The fluid level goes down as the brake pads wear out, so it doesn't necessarily mean you have a leak.
hi, my first post on this site, normally an alfaowner guy, but wrinx mentioned a post on this forum about injection lights, and here i am. so while i am here, my handbrake light has come on whilst going round bends, only twice, but its a little disconcerting. is it a fluid level thing, only whee turning right. i would assume that the sender is on the left hand side of the pot? i will check the fluid level, but it seemed okay last week, and the pads arent that old.