HELP! Weirdest Problem EVER

[twasadream]

Hello guys! 2012 4Runner, Trail edition here.

Few months back my dashboard started showing ABS light.

I kinda ignored it for two weeks.
And now i have the weirdest thing going on.
While driving all those lights come on and off thats shown on the video.
Speedometer and tachometer suddenly die and come alive after a few seconds.

One thing ive noticed, when speedometer and tachometer die if i slightly apply foot break(the one u apply when u park ur car), it resets speedometer and tachometer and some lights. Also, sometimes all the lights on dashboard and display go dimmer. Foot break also fixes those temporarily.

https://www.youtube.com/watch?v=8ij8SyNcWQI&feature=youtu.be

Ive had this car to service three times. They read codes. WHich was basically all of the codes. They cleared them, once they didnt come back for two days. Once all it took was half an hour. Another time half a day. They cant tell me anything!
Im going insane. Has anyone experienced such a problem? HEEEEELP.

 

[Hungryhawk]

Has any service techs tested the master brake cylinder brake booster accumulator?
If not try another shop with more experienced techs?

 

[twasadream]

Could those things cause so many things? so many lights and speedometer and tachometer not working? dashboard lights dimming out?

 

[apc9199]

Get your battery tested by a reputable shop with the proper equipment. Failing batteries will do all kinds of crazy things. I had a 2006 Jeep Liberty which, when the battery started to fail, would light up every indicator on the dash, the speedometer and tach would bounce back and forth between 0 and max and the doors would continuously lock and unlock until I killed the ignition. Swapped batteries and it was 100% fine after.

 

[Babs187]

Start simple, its clearly electrical, i would start with a battery/alternator test at a parts store- free. if those are fine, check your grounds, and check to see if your brake pedal is wearing on any wires as well. 9/10 its a battery/alt issue though. Good luck!