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2011 VOLVO XC60
3.2L I6•AWD•AUTOMATIC•gas
4 active safety recalls on this vehicle — view recalls
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Repairs0Labor492Torque4394Fluid10DTC1051Battery1Maintenance0Recalls4
B0040critical severityBody

Front Crash Sensor Communication Error

on 2011 Volvo XC60 3.2L I6 · AWD

What this code means

Communication loss between the front crash sensor and the airbag control module over the dedicated sensor bus.

Symptoms

  • Airbag warning light on
  • SRS fault stored
  • Frontal protection may be degraded

Common causes

  • Damaged sensor bus wiring
  • Faulty front crash sensor
  • ACM internal fault
  • Connector pin damage

Diagnostic steps

  1. Scan SRS codes for communication faults
  2. Inspect sensor bus wiring
  3. Check connector pins
  4. Test sensor power and ground
  5. Attempt ACM-to-sensor communication test

Repair notes

Repair sensor bus wiring or replace front crash sensor.

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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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