All the 3 lights came on at the same time abs TRACKION light and eps BAS what could be the problem

Right Rear Wheel Speed Sensor Signal Erratic Performance . Videos on youtube showing how to test the sensor , plus check tone ring .

wow no year car, now that is a challenge , no?
abs is first.
first- first are brakes.
abs stuck on key on and running full time right?
so check brakes for damage or worn out.
brake fluid level not falling? look yet? look when checking oil every time.
abs can not work on cars with bad brakes, (its not god like)
then check for ABS sensor damage and its wires. under car.
then scan the ABS. got errors, sure you do.
but what? you didnt scan it first.
or read the manual> RTM?
its only 4 bucks to read it.

posted over 200 times, this.
https://suzukipitstopplus.com/Category/3-suzuki-service-manuals.aspx

answer year and read.

when repair is done the warning light will reset

possibility of CV joint but then you should get the same sound at low speeds also.

if you getting this sound only at 2000-2500 rpm may be over advance ignition timing

please make the test RGBIIscanner/computer for easy diagnostic, and fix it. Can be any sensor or BCM faulty. \
Do not waste time+money.
God bless you

Whenever this warning light or any other stays on in the dash it is indicating that the systems control module (or the system sensor in the case of lights like low oil pressure, door open indicators etc.) has detected a fault, it then disables the system (this applies to ABS,TCS, TCM, SRS, TPMS and BCM faults and others) as long as the light is on. You must now have the dealer hook up a special electronic diagnostic tool and "scan" the system for the fault code that is stored for the problem(s)

Legend of Abbreviations. ABS Anti-lock brake system. TCS Traction control system, TCM Transmission control module, SRS Supplemental restraint system, BCM Body control module. TPMS Tire Pressure Monitor System

This means theres a problem with one of the systems, the most common that would turn on all these light would be the abs system, if the abs system is not working good then the EPS/BAS cant run correctly, they use readings from the abs system so i would say theres a problem with the abs system like a bad wheel speed sensor but in order to find out the computer will need to be scanned for the codes. A scann tool will be needed for this and the tool is not cheap so i would have a garage scan it. what happens is the computer will see a component out of spec or the reading is not sent and inturn it turns the lights on and stores a code with the reason why. for example the code may be C100A- right front spped sensor.

with regards of the eps /bas,abs you have to replace the brake switch.

the traction control uses the same sensors as abs, could be a sensor or even a wheel bearing, get the brakes inspected

If your ABS light is on then you will have to get the codes read to see what sensor is giving you the problem.The ABS light being on will also affect the traction control and brake pedal going to floor.Auto Zone will check codes but I`m not sure if they do ABS codes.They don`t charge so it wouldn`t hurt to ask.After you get the codes you can post back and I can help you find the problem.Good luck.