The TOPRAN Steering Angle Sensor (SAS), part number 623 141, is a critical component for modern vehicle safety and handling systems. It precisely detects the angle and rate of turn of the steering wheel, providing essential data to the vehicle's Electronic Stability Program (ESP) and Electric Power Steering (EPS) modules. Accurate readings from the SAS are vital for the proper functioning of ESP, which helps prevent skidding and loss of control during emergency maneuvers. It also informs the EPS system, allowing for variable assistance based on steering input, enhancing driving comfort and responsiveness. Replacing a faulty steering angle sensor is crucial to restore the intended functionality of these safety systems. A malfunctioning sensor can lead to warning lights on the dashboard, incorrect steering assistance, or the deactivation of stability control features, compromising vehicle safety.