What is the common symptom of a failed ABS system?

A common symptom of a failed Anti-lock Braking System (ABS) is brake pedal vibration. This occurs because the ABS works by rapidly applying and releasing brake pressure during hard braking situations to prevent wheel lock-up and maintain steering control. If the ABS is malfunctioning, the system may send erratic signals or improperly modulate brake pressure, leading to noticeable vibrations in the brake pedal.

In contrast, the other symptoms listed typically relate to different issues. Loss of power steering usually pertains to problems with the steering system or power steering pump, while a soft brake feel can indicate issues with the brake hydraulics or air in the brake lines. An unresponsive throttle is associated with the engine management system and not the braking system. Understanding these distinctions helps in diagnosing and addressing the correct vehicle issues effectively.