What Fault Does the EPS and ABS Light Indicate?

[Myrtle]

EPS and ABS lights indicate the following faults: 1. EPS: EPS stands for Electric Power Steering, an abbreviation of the English word electric-steering. If the ESP fault indicator light is on, it may indicate a malfunction in the vehicle's ESP system. It is recommended to immediately reduce driving speed, avoid excessive steering and turning, and have the fault diagnosed with a specialized diagnostic tool at a 4S shop as soon as possible to analyze the specific location of the fault. 2. ABS: ABS is short for Anti-lock Braking System. Its function is 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 of about 20%) to ensure maximum wheel-to-ground adhesion. If the ABS light is on, it indicates an abnormality in the vehicle, and the ABS anti-lock braking system is not functioning properly. Immediate inspection is required to avoid safety issues.

[Gomez]

I've been driving for twenty years and often encounter situations where both the EPS and ABS lights come on simultaneously, which is no small matter. EPS stands for Electric Power Steering system, and when its light is on, steering may become difficult; ABS is the Anti-lock Braking System, and when its light is on, the brakes may not prevent skidding, making the car prone to slipping. Common causes include sensors clogged with dust, aging or short-circuited wiring, blown fuses, or a faulty controller. When both lights come on together, it's likely due to a shared power supply issue or a fault in the vehicle's computer. Once, I was driving at night when the lights came on, the steering became stiff, and the brakes failed—I nearly had an accident. I quickly pulled over, checked the fuse box (which was fine), and called a tow truck to take the car to a repair shop for diagnostics. It turned out to be a wheel speed sensor issue. Regular maintenance is crucial; periodically cleaning dust around the wheels can prevent problems. But if issues arise, don't force the drive—professional handling is a priority for safety.

[VonAlessandra]

When both the ABS light and EPS light illuminate simultaneously, it's crucial to be highly vigilant as this may compromise driving safety. The ABS light indicates brake system abnormalities, such as anti-lock braking function failure, which could lead to skidding during emergency braking. The EPS light signals power steering malfunction, making the steering wheel heavy and difficult to control. The root causes vary, commonly including contaminated wheel speed sensors, loose wiring terminals, short circuits in control modules, or power fluctuations. I once experienced these lights coming on during rainy weather, with stiff steering and ineffective brakes, which frightened me into immediately activating hazard lights and pulling over for assistance. It's advisable to slow down and stop promptly, inspect simple components like fuses and wire connections, and if unresolved, contact professional technicians to read fault codes with diagnostic tools. These systems are complex - untrained individuals should avoid tampering and seek inspection at authorized dealerships for reliable solutions.

[McHarley]

From the perspective of vehicle electronic systems, the EPS light often illuminates due to bugs in the electric power steering control unit, possibly caused by unstable current or sensor data errors. The ABS light commonly indicates issues with the wheel speed sensors in the braking system. When both lights come on simultaneously, it may indicate shared faults such as CAN bus communication interruption or power relay damage. Using an OBD diagnostic tool to read codes can pinpoint the cause, such as excessively high sensor voltage. Repairs typically involve cleaning sensors or replacing control boards. I once resolved the issue by detecting and replacing a sensor myself using tools, but avoid disconnecting wires without proper knowledge as it may lead to more severe problems.