The thing is, ABS works fine but only VSA. VSA malfunctions, I don't think it's completely not working, actually VSA is trying to function. But it makes strange sound as if it's preventing the vehicle from skidding then the light comes on with "caution signed" light. Whole after acceleration. I mean when I start the engine: nothing is wrong. But when I start driving, when I hit acceleration pedal, and roll the wheel left or right, the problem comes.