hi, new member here. My 03 S Type has the DSC failure light on. The local dealer code shows 764751.00 brake booster solinoid failure. To my knowledge the booster DSC/ABS module is under the hood, but not attached to the booster at all. Im not clear on the diagnosics. They also
say possible master cyclinder leaking inside brake booster. I want to mention I have added brake fluid at least three times over the past year.
Do not see anything leaking, but have not checked wheel sensors .
i have done front pads,, a lot of city driving, so I thought with pistons pushing in fluid would need to be added. Do I need a second opinion, or
do the codes not lie.?

 

I replied to your other post about this. Please don't post the same thing multiple times!