2008 Tacoma Brakes! Please help! Thank you!

Hello! Before I even get started I have read multiple forums and still have not figured this issue out.
I have a 2008 Toyota Tacoma TRD 4x4 V6. I have had this pulsating brake pedal haunt me for almost a year... the brakes feel great while driving straight and hitting the brakes or turning right...the problem is when I am driving and turning left and hitting the brakes to slow down, that is when my brakes are pulsating or feeling spongy/bouncy. Also when the brakes are pulsating I hear a humming noise come from behind the dash. Sounds like some motor of some sort..... once I turn my wheel straight the noise and the pulsating stops.
i have changed my front brakes, rotors, calipers, brake booster, master cylinder and abs module...I have yet to fix the problem..
I would really appreciate if someone could give me some feedback. Thank you!

 

Is your truck lifted and do you have VSC?
It sounds like VSC is coming on. Guys with lifted trucks have report a similar problem.
It’s possible you need to recalibrate the VSC.
Before you try this, you need to be sure you even have VSC.
As it was optional in 08’ but not standard.
https://www.tacomaworld.com/threads/how-to-reset-and-calibrate-your-vsc-computer-the-easy-way.467485/

BTW, you will likely get more answers posting this here
https://www.tacomaworld.com/forums/2nd-gen-tacomas-2005-2015.5/

 

Just seen this but I appreciate the response! I’m not sure if it has vsc but I will check on that. Also will add this to the link you added for more feedback.