Toyota Sienna 1999 ABS light constantly on with increased fuel consumption on Toyota Sienna

Some Toyota Sienna 1999 owners report experiencing a constantly illuminated ABS light along with increased fuel consumption, which could signal various underlying issues. These symptoms may arise from malfunctioning wheel speed sensors, which can cause the ABS light to remain on. Additionally, low brake fluid levels are known to trigger the ABS warning light. Electrical problems such as a blown fuse, defective relay, or broken wiring harness can also lead to the ABS light staying illuminated. Furthermore, a faulty ABS module may be responsible for this issue. While the ABS light typically pertains to the braking system, increased fuel consumption could indicate separate fuel system problems, warranting a check of components like the fuel pump and fuel filter. It is crucial for owners experiencing these symptoms to seek professional assistance for a thorough inspection and diagnosis to ensure the safety and efficiency of their vehicle.