Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Traction Control System: Description
Traction Control System (TCS) consists of TCS control module, Throttle body with direct current motor and position sensor for TCS throttle, TCS function light, TCS OFF warning light, and ON/OFF switch.
TCS helps to prevent uncontrolled wheel spin during both fast acceleration and on slippery road surfaces. System is based on double throttle principle, known as Twin-Throttle System (TTS). This traction system controls torque of engine by regulation of throttle valve in extra throttle body. Extra TCS throttle body is mounted next to conventional throttle body. When maximum permitted wheel spin is exceeded, TCS throttle opening angle is decreased in comparison to that of throttle, reducing engine torque until wheel spin stops.
Four wheel speed sensors provide wheel speed information to ABS control module. ABS control module supplies this wheel speed information to TCS control module. TCS has no effect on ABS system. To compensate for normal changes in diameter of wheels, system is adaptive to changes such as tire wear. Mini spare wheels can be used with TCS function retained.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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