B0041
Side Crash Sensor Communication Error - Left
2006-2011 BMW 328i 3.0L I6 🇩🇪
Critical SeverityBody
Description
Communication loss between the left side crash sensor and the airbag control module.
Symptoms
- Airbag warning light on
- SRS code stored
- Left side airbag protection degraded
Common Causes
- Damaged wiring in door or B-pillar
- Faulty sensor
- ACM bus fault
- Door harness disconnect
Diagnostic Steps
- Scan SRS codes
- Check B-pillar connector
- Inspect door-to-body wiring
- Test sensor bus communication
Repair Notes
Repair wiring or replace left side crash sensor.
Related Codes
Other Body Codes
- B0001Driver Frontal Stage 1 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0005Driver Knee Airbag Deployment Circuit
- B0006Passenger Knee Airbag Deployment Circuit
- B0007Rear Left Side Airbag Deployment Circuit
- B0008Rear Right Side Airbag Deployment Circuit
- B0010Driver Side Airbag Deployment
- B0011Driver Side Airbag Deployment Circuit Open
B0041 on Other Vehicles
Common Questions
What does code B0041 mean on a 2006-2011 BMW 328i?
B0041 stands for "Side Crash Sensor Communication Error - Left". Communication loss between the left side crash sensor and the airbag control module.
What are the symptoms of B0041 on a BMW 328i?
Common symptoms of B0041 include: Airbag warning light on, SRS code stored, Left side airbag protection degraded.
What causes B0041 on a 2006-2011 BMW 328i?
Common causes of B0041 include: Damaged wiring in door or B-pillar, Faulty sensor, ACM bus fault, Door harness disconnect.