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2020 MAZDA MAZDA3
2.5L Skyactiv-G I4 (186 hp)•AWD•AUTOMATIC•gas
2 active safety recalls on this vehicle — view recalls
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Repairs0Labor987Torque6478Fluid16DTC2264Battery2Maintenance0Recalls2
C0131moderate severityChassis

Brake Pad Wear Sensor Circuit Rear

on 2020 Mazda Mazda3 2.5L Skyactiv-G I4 (186 hp) · AWD

What this code means

The rear brake pad wear sensor indicates pads are worn or the circuit is faulty.

Symptoms

  • Brake pad warning light
  • Service message for rear brakes
  • Reduced braking from rear

Common causes

  • Rear brake pads at minimum thickness
  • Wear sensor wire damaged
  • Connector not reattached after service

Diagnostic steps

  1. Check rear brake pad thickness
  2. Inspect wear sensor wire
  3. Check sensor connector
  4. Measure pad thickness

Repair notes

Replace rear brake pads and wear sensors.

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