What Does This Indicator Mean?
The Geely Yellow Anti-Lock Braking System ABS Warning Light illuminates when the vehicle electronic control unit detects a malfunction within the ABS network. Specifically, Geely cars utilize an integrated Electronic Stability Program and ABS module that continuously monitors wheel speed via inductive or active hall-effect sensors located at each wheel hub. When the ABS computer registers an implausible signal, an open circuit, or a complete drop-out from one of these sensors, or if it detects a hydraulic pump motor failure, valve actuation fault, or abnormal system voltage, it immediately deactivates the anti-lock braking functionality and illuminates this warning light on the instrument cluster to alert the driver.
Can I Still Drive with This Light On?
The strict mechanical verdict for a yellow-rated ABS warning light is that you can drive the vehicle with extreme caution, but your standard braking system operates without anti-lock protection. While your core friction brakes (calipers, pads, and rotors) will still function to slow and stop the vehicle during normal driving conditions, the safety net that prevents wheel lock-up during hard braking or on slippery surfaces is entirely disabled. Continuing to drive poses a severe safety risk during emergency braking maneuvers, as the wheels may skid and cause a loss of steering control. You should drive directly to a qualified repair facility at a safe speed, avoiding harsh braking.
Common Causes of the Warning
- Wheel Speed Sensor Failure or Contamination: Metallic debris, brake dust, or mud accumulation can obstruct the sensor tip, or the internal coil can fail, resulting in a lost or erratic vehicle speed signal sent to the Geely ABS module.
- Damaged Sensor Wiring Harness: Due to continuous suspension movement and exposure to road salt, moisture, and debris, the wiring harness or connectors leading to individual wheel speed sensors can chafe, fracture, or corrode, causing an intermittent or permanent open circuit.
- Faulty ABS Control Module or Hydraulic Pump: Internal electrical failures within the ABS control unit assembly, such as burnt-out relay switches, stuck internal solenoids, or a failed pump motor, will trigger this diagnostic trouble code.
How to Diagnose and Reset It
To diagnose the root cause of this warning light on a Geely vehicle, start with a visual inspection under the vehicle to check all four wheel wells, ensuring the sensor wiring harnesses are intact and free from physical damage or heavy contamination. Because ABS faults rarely trigger a standard engine check light code, you will need an advanced OBD-II diagnostic scanner capable of reading chassis and body control modules, specifically accessing the ABS/ESP system to retrieve stored diagnostic trouble codes (DTCs). Once the specific fault code points to the failing component—such as a specific wheel sensor or pump circuit—repair or replace the damaged part accordingly. After the physical repair is completed, use the bi-directional scan tool to clear the error codes from the Geely ABS module memory and road-test the vehicle above twenty miles per hour to verify that the self-calibration routine successfully extinguishes the indicator.