What is the fault when the DSTC system requires repair?

[LaWeston]

DSTC requiring repair indicates a fault in the anti-lock braking system, which needs to be checked at a repair shop. Below is relevant information about the anti-lock braking system: 1. Overview: The Anti-lock Braking System (ABS) is designed to automatically control the braking force during vehicle braking, preventing the wheels from locking up and maintaining a state of rolling and sliding (with a slip ratio around 20%), ensuring maximum traction between the wheels and the road. 2. Working Principle: During braking, ABS quickly determines the wheel lock-up state based on signals from each wheel speed sensor. It closes the normally open input solenoid valve for the wheel that begins to lock, keeping the braking force constant. If the wheel continues to lock, the normally closed output solenoid valve is opened, allowing the braking pressure on that wheel to rapidly decrease due to the direct connection to the brake fluid reservoir, preventing complete wheel lock-up caused by excessive braking force. This ensures the braking state remains at the optimal point (with a slip ratio S of 20%), achieving the best braking performance and the highest level of driving safety.