ABS and TCS lights come on intermitently when driving in my 2002 Santa Fe. After a while the brake light will come on.
I had the rear passenger Trailing arm replaced due to salt corrosion recently.

I have had it in to the dealer twice and they can't find any error codes in the computer and all the lights are reset to off.
Can anyone give me an idea of what I should look for. I am not a mechanic and really don't have a clue of what I should look for.

Thanks

 

There is a recall on the stop light switch (however, your year SF is not one of the years listed). however, it is something to check. Also, look into a broken tone ring on one of the wheel speed sensors.

More info:
https://www.hyundaiforum.com/forum/g...e-lights-6251/
https://www.hyundaiforum.com/forum/h...s-light-10764/
https://www.hyundaiforum.com/forum/h...one-out-10029/
https://www.hyundaiforum.com/forum/h...ame-time-8238/