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C1140 fault code: what it means

C1140: ABS actuator relay fault. ABS and VDC are disabled; normal braking remains.

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

Usual causes, most likely first

  1. ABS actuator and electric unit (internal relay)
  2. ABS power supply or fusible link
  3. wiring fault

C1140 by make

Nissan

ABS actuator relay fault. ABS and VDC are disabled; normal braking remains.

Usual causes: ABS actuator and electric unit (internal relay); ABS power supply or fusible link; wiring fault

Not sure what C1140 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.