Credov

C1027 fault code: what it means

C1027: ABS wheel speed sensor signal fault, rear left: signal missing or noisy while driving. ABS/ASC disabled.

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

Usual causes, most likely first

  1. dirty or loose sensor
  2. damaged tone ring or wheel bearing
  3. sensor fault

C1027 by make

Mitsubishi

ABS wheel speed sensor signal fault, rear left: signal missing or noisy while driving. ABS/ASC disabled.

Usual causes: dirty or loose sensor; damaged tone ring or wheel bearing; sensor fault

What the repair usually costs

Not sure what C1027 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.