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Home >> Saab >> 2005 >> 9-3 Linear, 2D Convertible, Automatic >> Repair and Diagnosis >> Brakes >> Anti-Lock/Traction Control >> Technical description >> TCS/ESP, detailed description >> TCS function >> High speed

High speed

At speeds higher than 40 km/h (25 mph), the TCS function changes its mode of operation and starts modulation with engine torque limitation of the wheel that first starts to spin, i.e. the wheel with the lowest friction.

Modulation with brake application is used to brake the spinning wheel when engine torque limitation is inadequate.

Braking is used at speeds up to 40 km/h (25 mph).

Primary limitation of engine torque means that no extra tractive force is transferred to the outer wheel when cornering. The outer wheel then has a sufficient margin of grip to take up steering forces to the full. The driver avoids being taken by surprise as the front wheels suddenly lose traction.