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C1120 fault code: what it means

C1120: ABS inlet valve fault, front left (pattern C1120/C1122/C1124/C1126 for each wheel). ABS and VDC are disabled.

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

Usual causes, most likely first

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

C1120 by make

Nissan

ABS inlet valve fault, front left (pattern C1120/C1122/C1124/C1126 for each wheel). ABS and VDC are disabled.

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

Not sure what C1120 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.