Credov

C1249 fault code: what it means

C1249: Open circuit in the stop light switch circuit on a Lexus. Brake lights, VSC or cruise may not work.

Chassis (brakes, steering, suspension) · Costly if missed

Usual causes, most likely first

  1. failed brake light switch
  2. blown stop lamp fuse
  3. wiring fault

C1249 by make

Lexus

Open circuit in the stop light switch circuit on a Lexus. Brake lights, VSC or cruise may not work.

Usual causes: failed brake light switch; blown stop lamp fuse; wiring fault

Toyota

Open circuit in the stop light switch circuit. Brake lights may not work and VSC/cruise may be disabled.

Usual causes: failed or out-of-adjustment brake light switch; blown stop lamp fuse; wiring fault

Not sure what C1249 means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.