Post by
biosehnsucht »
https://forums.nicoclub.com/biosehnsucht-u13953.html
Mon Mar 29, 2004 1:47 pm
I know from experience that if you get low in brake fluid, a sensor in the brake fluid resevoir causes the light to stay on. Of course, pulling the ebrake does it too. I think it works by either one providing a path to ground for the light therefore either one being active makes it go on, but I could be wrong, might be either one provides power (but things in our cars are more often ground-switched than power-switched).
When I first had the car it was leaking from the right rear caliper (slowly) plus I had almost no pads left (so it took more fluid into the calipers) and the fluid was low.. at first it only came on when turning one direction, then would not turn off unless turning the other (and by turning I mean *cough* cornering), the it stayed on and I went wtf and looked and went OH ****