Ouch! $3400 Brake Repair

[GXCRUISER]

I had a similar issue in my FJ cruiser, it was caused by an improperly seated air box, i read somewhere that if its not closed properly it can throw all of the lights similar to your situation. I had just changed the air filter and sure enough messed up on one of the latchs, reseated and fixed the lights issue.

 

[FrankTorres]

Here is a link from over at ClubLexus that might be of use.
Specifically, how the brake booster motor was repaired.
DIY master cylinder repair