Credov

C1531 fault code: what it means

C1531: Brake light switch stuck off. VDC/hill hold may not work; brake lights may not work.

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

Usual causes, most likely first

  1. stop light switch
  2. wiring or fuse fault

C1531 by make

Subaru

Brake light switch stuck off. VDC/hill hold may not work; brake lights may not work.

Usual causes: stop light switch; wiring or fuse fault

Not sure what C1531 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.