Why ABS, Traction & Brake Lights Stay On (2000 Lincoln LS)

Common culprits:

• Wheel-speed sensor failure (corrosion, wiring break).
• Low brake fluid (check reservoir; inspect for leaks).
• Faulty brake-light switch at the pedal.
• ABS module failure (internal solenoid or processor fault).
• Wiring/ground issues in the harness.

Diagnosis: Plug an OBD-II scanner (capable of ABS codes) to read specific DTCs (e.g., C1145, C1233). Address the root cause; clearing codes without repair will cause immediate re-illumination.