B0087
SRS Arming Sensor Circuit
2012-2015 BMW 320i 2.0L I4 Turbo N20
Critical SeverityBodyGeneric (SAE)
Description
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
- Scan SRS codes
- Locate arming sensor (usually in ACM or center console area)
- Check sensor wiring
- Measure sensor circuit
- Test ACM
Repair Notes
Replace arming sensor or ACM if sensor is integrated. Professional service required.
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
- B0009Rear Center Airbag Deployment Circuit
- B0010Driver Side Airbag Deployment
B0087 on Other Vehicles
Common Questions
What does code B0087 mean on a 2012-2015 BMW 320i?
B0087 stands for "SRS Arming Sensor Circuit". Malfunction in the SRS arming/safing sensor. The arming sensor provides a secondary confirmation before allowing airbag deployment.
What are the symptoms of B0087 on a BMW 320i?
Common symptoms of B0087 include: Airbag warning light on, SRS fault stored, Airbag deployment may be prevented even in a crash.
What causes B0087 on a 2012-2015 BMW 320i?
Common causes of B0087 include: Faulty arming sensor, Wiring damage, ACM internal fault, Sensor connector issue.