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• 141.

  Is it OK to drive with a bad ABS module?

  Driving with a faulty ABS (anti-lock braking system) module is not recommended, especially when relying on the ABS function for safe braking under certain driving conditions. Here are a few reasons why this is not recommended:
  ① Reduced safety: The main function of ABS is to prevent wheel locking during braking, especially in slippery conditions or during emergency stops. A faulty ABS module may affect this function, causing longer stopping distances and increasing the risk of losing control of the vehicle, especially in adverse weather conditions or when stopping suddenly.
  ② Impact on other systems: In some vehicles, a failed ABS module may affect other systems or components, such as the stability control system or traction control system. This can further compromise the vehicle's stability and handling characteristics, especially in challenging driving conditions.
  ③ Increased repair costs: Ignoring a faulty ABS module may cause further damage to other components within the ABS system or the entire vehicle braking system. This can result in more extensive repairs and higher costs.
  
  If you suspect that your ABS module is faulty, it must be inspected and repaired by a qualified mechanic or technician as soon as possible. They can diagnose the problem and recommend necessary repairs to restore the proper functionality of the ABS system. Before repairing or replacing an ABS module, use extreme caution when driving, especially in slippery or hazardous conditions, and consider avoiding high-speed or emergency braking situations whenever possible.
  
• 142.

  Do you bleed ABS brakes with engine running?

  Bleeding ABS brakes usually does not require the engine to be running. Here's a general overview of the process:
  ① Preparation: Park the vehicle on level ground and engage the parking brake. Make sure the vehicle is safely supported, whether on jack stands or a lift. Open the hood and locate the brake fluid reservoir. Make sure to fill to the proper level with recommended brake fluid.
  ② Remove the wheels: If necessary, remove the wheels that need to be braked. Not all bleeding procedures require this step, depending on your vehicle's design.
  ③ Bleeding sequence: Follow the manufacturer’s recommended bleeding sequence for your vehicle. Typically, you start with the wheel furthest from the master cylinder (usually the right rear), then move to the next furthest wheel, and so on, ending with the closest wheel.
  ④ Bleed procedure: With the engine turned off, have your assistant step on the brake pedal several times, and then hold down the brake pedal while opening the bleed valve on the brake caliper or wheel cylinder. The air and old brake fluid will be drained. Close the valve before the assistant releases the brake pedal to avoid air being sucked into the system.
  ⑤ Repeat: Repeat the bleeding process for each wheel until all air is removed from the brake line.
  ⑥ Check the fluid level: Check the brake fluid level in the reservoir regularly during the entire deflation process and top it up as needed. Make sure it is not running idle to prevent air from entering the system.
  ⑦ Test: After releasing the air from all wheels, test the firmness of the brake pedal and check whether there are signs of bubbles in the brake fluid. Also, test the brakes in a safe area to make sure they are working properly.
  Remember, be sure to check your vehicle's service manual or manufacturer's recommendations for specific bleeding procedures and any considerations unique to your vehicle. If you're unsure about performing the procedure yourself, it's best to let a qualified mechanic or technician handle it.
  
• 143.

  How do I know if my ABS module is bad?

  There are several signs that may indicate a potential problem with your ABS module:
  ① ABS warning light: One of the most common signs of a faulty ABS module is the ABS warning light on the instrument panel coming on. This light usually indicates a problem with the ABS system, which may be caused by a faulty module.
  ② Brake system warning light: In addition to the ABS light, if your vehicle is equipped with a separate brake system warning light, it may also come on, indicating a problem with the ABS module or the entire braking system.
  ③ Strange Brake Pedal Behavior: A malfunctioning ABS module can cause unusual behavior in the brake pedal. You may experience a spongy or mushy brake pedal feel, or the pedal may feel excessively stiff or difficult to press. In some cases, the brake pedal may pulsate or vibrate during braking.
  ④ ABS system not working properly: If you find that the ABS system is not working properly, such as during emergency braking or on slippery roads, it may be a sign of a faulty ABS module. The ABS system may fail to engage or may engage unexpectedly, affecting the vehicle's stability and stopping distance.
  ⑤ ABS pump runs continuously: Sometimes, a faulty ABS module may cause the ABS pump to run continuously, even when the vehicle is not running or the brakes are not applied. This can drain the battery and cause ABS components to overheat.
  
  If you experience any of these symptoms, it is important to have your vehicle inspected by a qualified mechanic or technician as soon as possible. They can diagnose the problem, determine if the ABS module is indeed faulty, and recommend necessary repairs or replacements.
  
• 144.

  What happens if you get air in ABS module?

  If air gets into the ABS (anti-lock braking system) module, it can cause some potential problems:
  ① Soft or spongy brake pedal: Air in the ABS module can cause the brake pedal to feel soft or spongy. This happens because air is compressible, unlike brake fluid. When you press the brake pedal, the air is not transferred directly to the brakes but is compressed, reducing the force applied to the brakes. As a result, you may notice that your brake pedal feels soft or requires more effort to stop the vehicle.
  ② Reduced braking performance: Air bubbles in the ABS module will also reduce the efficiency of the braking system. The brakes may not react quickly or effectively, increasing stopping distances and potentially compromising safety.
  ③ ABS failure: In severe cases, there is air in the ABS module, which will cause the ABS system to malfunction. This triggers a warning light on the dashboard, such as the ABS warning light or the brake system warning light. When the ABS system fails, it may not function properly, which may result in unsafe driving conditions, especially during emergency braking situations.
  
  To resolve air issues in the ABS module, it may be necessary to bleed the system. Bleeding the ABS system involves removing air from the brake lines and the ABS module itself. This procedure usually requires specialized equipment and should be performed by qualified technicians. Air problems in the ABS module must be resolved promptly to ensure safe operation of the vehicle's braking system.
  
• 145.

  What is the advantage of AFS?

  The Adaptive Frontlighting System (AFS) provides drivers with several benefits, especially when driving at night or in challenging road conditions:
  ① Improved visibility: AFS adjusts the direction and range of the vehicle's headlights based on steering input, vehicle speed and driving conditions. By directing light in the direction of travel, AFS improves visibility, especially around curves and corners, thereby reducing the risk of accidents due to poor visibility.
  ② Enhanced safety: The improved visibility provided by AFS helps drivers detect potential hazards, obstacles and pedestrians faster and more accurately, thereby improving overall safety. This is particularly useful when driving on winding roads, in urban areas or in adverse weather conditions.
  ③ Reduced glare: AFS systems can automatically adjust the intensity and direction of the headlights to reduce glare for oncoming drivers and vehicles ahead. This helps minimize the risk of blinding other drivers while still providing optimal illumination for the road ahead.
  ④ Optimize road lighting: The AFS system can dynamically adjust the headlight beam pattern according to driving conditions to optimize road lighting. This ensures that light is directed where it is needed most, whether that is illuminating the road ahead, the sides of the road or roadside signage.
  ⑤ Enhanced driving comfort: By providing better visibility and reducing glare, AFS can enhance driving comfort, especially when traveling long distances or driving at night. Improved lighting of the road ahead reduces eye fatigue, making driving safer and more enjoyable.
  Overall, adaptive front lighting systems offer significant advantages in terms of safety, visibility and driving comfort, making them a valuable feature in modern vehicles, especially those used for night or low-visibility driving.