What does APS malfunction mean?

[ConnorLynn]

There is no APS malfunction indicator on vehicles, only the ABS warning light indicates an Anti-lock Braking System fault. Below are specific details about the ABS system: 1. ABS system function: ABS is the vehicle's Anti-lock Braking System, which belongs to the active safety systems of automobiles. When the ABS light illuminates, it indicates that the vehicle's computer has detected a fault in the ABS system. 2. Reasons for ABS light activation: Under normal driving conditions, the ABS remains dormant. It only activates during emergency braking situations, such as high-speed hard stops, when the vehicle's computer determines ABS intervention is necessary. When the ABS light comes on, it's often due to malfunctioning wheel speed sensors. The ABS computer cannot detect the driving conditions of each wheel or compare the slip ratios between wheels, preventing the ABS system from functioning properly.