The TCS control makes judgment on the speed and slip condition (spinning) of each wheel from each wheel speed sensor signal. If both driving wheels are spinning, the engine TCS control is performed. If one wheel alone is slipping, the brake TCS control is performed.

If the VSA control unit detects drive wheel slipping during starting, accelerating or cornering, a torque down signal is sent to the PCM. The torque of the driving wheel is reduced by the PCM to maintain tire grip on the road surface.