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What Causes the Steering Wheel to Become Lighter?

1 Answers

VonEliana

07/30/25 6:11am

Steering wheel becoming lighter is usually caused by overheating of the power steering system's electronic control unit. Here is more information about the steering wheel becoming lighter: 1. Introduction: For models equipped with electric power steering or electro-hydraulic power steering, the steering wheel becoming lighter is typically caused by overheating of the power steering system's electronic control unit. 2. Cause: The electronic control unit of the power steering system uses signals from wheel speed sensors to adjust the level of assistance. Overheating of the electronic control unit can lead to incorrect analysis of vehicle speed, causing the steering wheel to suddenly become lighter at high speeds. 3. Electric Power Steering System: The electric power steering system uses a motor to directly provide assistance, while electro-hydraulic power steering uses a motor instead of the engine to drive hydraulic oil for assistance. Since both driving methods are not affected by engine speed, the system's programming is set to provide lighter steering at low speeds and heavier steering at high speeds, thereby improving maneuverability at low speeds and stability at high speeds.

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