On Thu, 23 Jan 1997, Bill Georgas wrote:
> Andy, et al,
>
> I know I am joining this discussion late, but since my braking system
> is in pieces, and I am replacing a leaking PDWA , I thought I'd add
> my understanding.
>
> As one of the circuits (front or back fails), the change in pressure
> to that subsystem does in fact cause the piston to move. This triggers
> the idiot light. I also thought the movement of the piston closed
> off the offending subsystem, in effect limiting the loss of brake fluid.
Not according to the workshop manuals. Any closing of the system is done
in the master cylinder.
--Andy
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