* Low Brake Fluid: This is the most likely cause. Low brake fluid can trigger both lights because the system detects a problem with brake pressure regulation, a key component of the ABS system, and this information is shared with the engine control module (ECM). Check your brake fluid level immediately.
* ABS Wheel Speed Sensor Problems: One or more wheel speed sensors may be faulty, dirty, or damaged. The ABS system relies on these sensors to determine wheel speed and adjust braking accordingly. A faulty sensor can send incorrect information to the ABS module, triggering both warning lights.
* ABS Module Failure: The ABS module itself could be malfunctioning. This is a more serious issue and typically requires professional diagnosis and repair or replacement.
* Brake System Leaks: A leak in a brake line or component can lead to low brake fluid, setting off both lights.
* Wiring Issues: Damaged or corroded wiring within the ABS system can disrupt communication, causing the lights to come on.
* Power Issues: Problems with the battery or alternator could cause voltage fluctuations that disrupt the ABS and trigger both lights.
What to do:
1. Check Brake Fluid: This is the first and easiest thing to do. Low fluid level is a strong indicator of a serious problem that requires immediate attention.
2. Have it Diagnosed: Take your Caravan to a mechanic or auto parts store that offers OBD-II code reading. The codes will pinpoint the exact problem. A simple code reader won't always capture ABS codes, but a professional scanner will.
3. Don't Ignore it: Driving with these lights on means your ABS is not functioning correctly, and potentially you have a brake system issue. This compromises your safety and could lead to accidents. Do not delay getting it checked.
