1. Low brake fluid: Check the brake fluid level in the reservoir. If it's low, add brake fluid of the recommended type and check for leaks in the brake lines.
2. Faulty brake fluid sensor: The brake fluid sensor monitors the fluid level and triggers the warning light when it's low. A faulty sensor can cause the light to turn on even when the fluid level is fine.
3. Worn brake pads: As brake pads wear down, the brake fluid level may drop, triggering the warning light. Check the brake pad thickness and replace them if they are worn.
4. Sticking brake caliper: A sticking brake caliper can cause the brake fluid level to rise, which can also trigger the warning light. Check the calipers for proper movement and lubricate them if necessary.
5. Electrical issue: A faulty wire or connection in the brake fluid sensor circuit can cause the warning light to malfunction. Check the wiring and connections for any damage or corrosion.
Recommended Actions:
1. Check the brake fluid level, brake pads, and brake calipers.
2. If necessary, add brake fluid, replace brake pads, or lubricate brake calipers.
3. If the warning light persists, have it diagnosed by a qualified mechanic.
