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2020 SUBARU LEGACY
2.5L H4•AWD•CVT•gas
6 active safety recalls on this vehicle — view recalls
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Repairs0Labor488Torque4342Fluid9DTC1881Battery1Maintenance0Recalls6
C1141high severityChassis

Master Cylinder Pressure Sensor Abnormal

on 2020 Subaru Legacy 2.5L H4 · AWD

What this code means

The ABS module detected an out-of-range signal from the master cylinder brake pressure sensor. This sensor tells the system how hard the brakes are applied.

Symptoms

  • ABS warning light on
  • Stability control disabled
  • Brake assist may not function

Common causes

  • Faulty pressure sensor
  • Wiring or connector fault
  • Air in brake hydraulic system
  • Faulty ABS control module

Diagnostic steps

  1. Retrieve ABS codes
  2. Check sensor wiring and connector
  3. Compare sensor reading to actual pressure
  4. Bleed brakes and retest
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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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