Front Impact Sensor Circuit - Left
1999-2000 BMW 323i E46 2.5L I6 🇦🇺
Description
Malfunction detected in the left front impact sensor circuit. This sensor detects frontal crash severity on the driver side.
Symptoms
- Airbag warning light on
- SRS fault stored
- Frontal airbag system may not function
- No driving symptoms
Common Causes
- Faulty front impact sensor
- Wiring damage from front collision
- Connector corrosion from road splash
- Sensor mounting bracket loose
Diagnostic Steps
- Scan SRS codes
- Inspect left front impact sensor mounting
- Check wiring to sensor
- Measure sensor circuit resistance
- Verify sensor bracket integrity
Repair Notes
Replace front impact sensor or repair wiring. Sensor is typically mounted in the front fender or bumper support area.
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
- B0010Driver Side Airbag Deployment
- B0011Driver Side Airbag Deployment Circuit Open
- B0012Driver Side Airbag Deployment Circuit Short to Ground
- B0013Driver Side Airbag Deployment Circuit Short to Battery
B0030 on Other Vehicles
Common Questions
What does code B0030 mean on a 1999-2000 BMW 323i E46?
B0030 stands for "Front Impact Sensor Circuit - Left". Malfunction detected in the left front impact sensor circuit. This sensor detects frontal crash severity on the driver side.
What are the symptoms of B0030 on a BMW 323i E46?
Common symptoms of B0030 include: Airbag warning light on, SRS fault stored, Frontal airbag system may not function, No driving symptoms.
What causes B0030 on a 1999-2000 BMW 323i E46?
Common causes of B0030 include: Faulty front impact sensor, Wiring damage from front collision, Connector corrosion from road splash, Sensor mounting bracket loose.