brake light on?

[Dan Simoes <dans@ans.net>]

This weekend I changed the rotors and pads on the 1988 90 (fwd).
More details in the form of a 'howto' later.
When I was putting the brake fluid reservoir cap back on, it broke,
so I went to the dealer today to get one.  I had noticed a little 
plunger in the center of the resevoir, within a type of mesh screen.
The old cap had a plunger in the center which I guess presses down
on the sensor.  Anyway, my 'brake' light was on which I attributed to
the cap being off (I plugged it with a rag) - not the one in the center,
amber colored multicheck thingie, but one of the red rectangular lights
down near the odometer.

When I got the new cap at the dealer, the part had been superceded
by one without the plunger (or 'peg') in it, just looks like a 
regular cap.  My light didn't go out, so I asked the service
manager to look at it.  He thinks the sensor is bad, which is an 
integral part of the reservoir ($44!) or 'any number of things'.

Changing the brakes was so trivial - I *know* I didn't break anything.
There were no pad wires, nothing, that could be causing the light to 
stay on.  The only things I did were to 1) break the cap, 2) press
down on the plunger in the reservoir a couple of times.  Now the 
plunger doesn't go down, but I looked at a new reservoir and it doesn't
appear that there is a plunger, just the bottom of the filter.
Hmmm - interesting.  I wonder if they changed the whole sensor mechanism
in the reservoir.  Aargh.

Any ideas?  I can get the light to go out by unplugging the wires at
the bottom of the reservoir, but that's less than ideal.  Oh.  Some 
models have a totally different setup with the wires connecting to
the cap...

| Dan |
-- 
Dan Simoes			          dans@ans.net
ANS CO+RE Systems, Inc.		         (914) 789-5378
100 Clearbrook Road  			Elmsford, NY 10523