B0044
Rear Impact Sensor Performance
2001-2005 BMW 325xi E46 2.5L I6 AWD 🇩🇪
Critical SeverityBody
Description
The rear impact sensor self-test failed or the sensor output is outside expected range.
Symptoms
- Airbag warning light on
- SRS code stored
- Rear collision detection degraded
Common Causes
- Sensor internal failure
- Mounting surface damaged
- Prior rear collision damage
- Calibration issue
Diagnostic Steps
- Read freeze frame data
- Check sensor output
- Inspect mounting surface
- Verify no rear structural damage
Repair Notes
Replace rear impact sensor. Inspect rear structure for collision damage.
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
B0044 on Other Vehicles
Common Questions
What does code B0044 mean on a 2001-2005 BMW 325xi E46?
B0044 stands for "Rear Impact Sensor Performance". The rear impact sensor self-test failed or the sensor output is outside expected range.
What are the symptoms of B0044 on a BMW 325xi E46?
Common symptoms of B0044 include: Airbag warning light on, SRS code stored, Rear collision detection degraded.
What causes B0044 on a 2001-2005 BMW 325xi E46?
Common causes of B0044 include: Sensor internal failure, Mounting surface damaged, Prior rear collision damage, Calibration issue.