How to Deal with ABS Warning Light On?
2 Answers
ABS warning light on indicates the following fault conditions and solutions: Fault 1: ABS warning light stays on continuously Solution 1: Clean dirt on the vehicle speed sensor and adjust the gap between the vehicle speed sensor and the signal gear ring to restore normal operation. Solution 2: Check the wiring connections and reconnect any loose connections. Fault 2: ABS warning light intermittently turns on, but turns off during acceleration Solution: Check the battery specific gravity; inspect the charging system; examine the power supply (such as voltage relay or poor power contact). Fault 3: ABS warning light remains on after engine starts and only turns off when engine IGFF Solution: Loosen the ground fixing screw of the hydraulic valve body, then retighten the fixing screw and clean the contact surface if necessary; replace the ABS or ABS/ASR computer. Fault 4: ABS warning light turns on during high-speed driving Solution: Refer to the vehicle's tire specifications and wheel specifications, check the sticker near the fuel tank cap. Fault 5: ABS warning light intermittently turns on Solution: Start the engine, press the brake pedal, push the brake switch linkage down to the bottom with your fingers, then release the brake pedal to complete the self-setting position. Replace the brake light switch.
Having driven for so many years, when the ABS warning light comes on, I usually find a safe place to pull over immediately because this signal indicates a problem with the anti-lock braking system, which can cause the wheels to lock up during braking and increase the risk. Check the sensors on all four wheels—they might be blocked by mud or small stones from the road, as dirt can trigger false alarms. Simply clean the surface of the sensors and restart the engine; sometimes, a system reboot fixes the issue. If the light remains on, do not continue driving, as the braking performance will be significantly reduced without ABS, especially on rainy or icy roads. I recommend driving directly to a repair shop to use professional tools to read the fault codes and identify the cause—it could be a faulty sensor or a short circuit. Early intervention can prevent bigger problems. Also, pay attention to cleaning the wheel hub area during regular car washes to prevent blockages.
