* Low Brake Fluid: This is the most common and often the easiest to fix. Check your brake fluid reservoir (usually a clear plastic container near the master cylinder) and add fluid if it's low. However, low fluid indicates a leak somewhere in the system, which needs immediate attention. Don't just add fluid; find and fix the leak.
* ABS Module Failure: The Anti-lock Braking System (ABS) module is a computer that controls the ABS function. A malfunctioning module can trigger both lights. This is a more serious issue requiring professional diagnosis and repair, often involving replacement of the module.
* ABS Sensor Problems: Wheel speed sensors detect wheel rotation and are crucial for the ABS system. A faulty sensor (one or more) will prevent the ABS from functioning correctly and illuminate the warning lights. These sensors can be damaged by debris, corrosion, or wear.
* Brake Switch Issues: A faulty brake light switch can cause both lights to stay on. This switch is activated when the brake pedal is pressed, and if it malfunctions, it can send incorrect signals.
* Wiring Issues: Damaged or corroded wiring within the braking system or the ABS system can interrupt signals and trigger the warning lights. This can be difficult to diagnose.
* Master Cylinder Issues: Problems with the master cylinder (the component that distributes brake fluid) can also lead to this issue. This would likely be accompanied by spongy brakes or a decreased braking ability.
What to do:
1. Check brake fluid level immediately. If low, find the leak! Driving with low brake fluid is extremely dangerous.
2. Have the vehicle professionally diagnosed. An OBD-II scanner can read codes from the ABS module, helping pinpoint the exact problem. A mechanic with experience in older vehicles is recommended since diagnosing issues on a 1998 vehicle might require more than just a simple code scan.
3. Do NOT ignore the lights. Driving with these lights on means your braking system may not be functioning optimally, significantly increasing the risk of an accident.
Ignoring the problem can lead to brake failure, so get it checked promptly by a qualified mechanic.
