What's up guy's. I tried looking for an answer to my scare and didn't find one. Looked through one or two posts and we all know most likely it comes down to the abs module/motor. But for those who run across this issue, here's what helped me with a temporary fix while I get a new one. As you look at the master cylinder, the pump is on the left of it, listen for the motor making noise. If not, tap the top with a ratchet while the ignition was in the "on" position but without the car running. After three taps I heard the motor activate and start running. Turn the key to the off position and proceeded to start my car, lights gone and brakes working fine. Not saying it's a permanent fix, or if it'll fix your issue. But if it works, it helps until you find a new abs motor.
I have a 99 GS300 almost 300k miles.

 

Good tip! Yep, usually the motor failure is the reason these things go out. Good luck finding a replacement. Can't be too disappointed with 300k miles out of the original motor.