ABS light and traction control light need help

[simonsun347]

Hi everyone,

Need some help here. After my last car wash (at a self-wash place), my ABS and traction control light both lighted up in the middle of the drive home. I shut the car off after I got home and restarted and they went away so I thought it just glitched. Next morning I started the car sitting idle for a couple minutes, no lights. As soon as I start to back out of the parking space, both lighted up again. I drove to work and parked. Checked codes using OBDII, nothing would show up. I checked the brake fluid level as some search result suggested, it's above max. Not parking in any incline/decline either. As soon as I shut the car off and restart, the lights would go away but as soon as the car is in motion again, the lights are on.

Any clues on what this could be and how to fix it?

Thanks.,