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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
B0087critical severityBody

SRS Arming Sensor Circuit

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

What this code means

Malfunction in the SRS arming/safing sensor. The arming sensor provides a secondary confirmation before allowing airbag deployment.

Symptoms

  • Airbag warning light on
  • SRS fault stored
  • Airbag deployment may be prevented even in a crash

Common causes

  • Faulty arming sensor
  • Wiring damage
  • ACM internal fault
  • Sensor connector issue

Diagnostic steps

  1. Scan SRS codes
  2. Locate arming sensor (usually in ACM or center console area)
  3. Check sensor wiring
  4. Measure sensor circuit
  5. Test ACM

Repair notes

Replace arming sensor or ACM if sensor is integrated. Professional service required.

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Other Body codes on this vehicle

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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