What causes the Jetta's ESC failure preventing engine start?

1 Answers
LaKiara
07/29/25 5:09pm
It is likely caused by a faulty ABS pump or a dirty throttle body. Below is relevant information about the ESC system: 1. Overview: The Electronic Stability Control system is a new active safety feature in vehicles, representing an extension of the Anti-lock Braking System (ABS) and Traction Control System (TCS) functionalities. It additionally incorporates a yaw rate sensor, lateral acceleration sensor, and steering wheel angle sensor during cornering. The ECU controls the driving and braking forces on all four wheels to ensure lateral stability. 2. Components: This system consists of three main parts - sensors, Electronic Control Unit (ECU), and actuators. The ECU monitors vehicle operation status and intervenes in engine and braking system control. A typical ESC system includes wheel speed sensors, steering angle sensor, lateral acceleration sensor, yaw rate sensor, brake master cylinder pressure sensor, among others.
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