Alright so my car started making this beeeeep noise like two weeks ago, (prior to When I bought the car, the vsc, abs, and vsc off lights were all on and I do no issues for about 2 months) then no noise for like a week, then it did it again and went away then came back 10 minutes later and the brake light would come on. And now it’s still doing in but more frequently and my brake pedal went solid today while driving, I was still able to brake but it was sketchy. I have no leaks and I have brake fluid. My guess is the master cylinder or booster is whacked out? I found a jdm one for $99 free shipping but is that gonna work in my car? I have a 1999 gs400 and other ones online are like $350+ used

Will this work in my car?

 

Looks like it. Be careful buying anything that cheap. May be a reason.