>I do not know how to tell which hydraulic cicuit is the one "closed off" but my
>brake light is definitely glowing. I also heard the tell-tale click of the PDWA
>while bleeding the brakes so I am fairly certain it is "tripped".
>Again my question was how to detemrine which circuit (front or rear) is
>actually the one tripped?
BTDT. I wouldn't bother trying to center the PDWA piston by bleeding one brake
circuit or the other. You'll go through a LOT of brake fluid! Simply remove the
warning sender from the top of the PDWA and, using a straightened paper
clip, manually center the itty-bitty piston in there. You may have to fiddle
with it a bit to get the light to go out, but it's easier this way than bleeing
the system. If I remember correctly the shuttle inside the PDWA has a
tapered center section, and it's this area that should be centered in the
hole. The idea is that, when the shuttle is pushed to one side by a brake
pressure imbalance, one of the tapered sides will touch the brass bit that
sticks down from the sending unit and ground a curciut.
- BAK -
Bruce A. Krobusek
'72 TR6 CC75665LO