What is an ABS Electronic Stability Program Fault?

[StAna]

ESP/ABS refers to a fault in the vehicle's electronic stability system. ESP stands for Electronic Stability Program: it analyzes vehicle driving state information from various sensors and then sends correction instructions to ABS, EBD, etc., to help the vehicle maintain dynamic balance. ESP can keep the vehicle optimally stable under various conditions, with particularly noticeable effects in cases of oversteer or understeer. Expansion: ESP includes the following functions: EBD: Adjusts braking force distribution to prevent the vehicle's rear wheels from locking up first; it generally fails only when there is a hardware module fault. ABS: Prevents wheel lock-up by calculating the vehicle's slip rate and controlling it near the peak adhesion coefficient, which is a passive safety control. TCS: Traction Control System, typically used for vehicles on low-adhesion surfaces where drive wheels slip; TCS requests the engine to reduce torque while lightly applying brakes to ensure smooth vehicle starts. VDC: Vehicle Dynamic Control system, mainly corrects understeer and oversteer by actively pressurizing individual wheels. TCS and VDC involve active pressurization, meaning pressure can be applied to the brake lines without needing to press the brake pedal.