B0037
Rollover Sensor Circuit
2001-2005 BMW 325i E46 2.5L I6
Critical SeverityBodyGeneric (SAE)
Description
Malfunction in the rollover detection sensor. This sensor monitors vehicle orientation to deploy curtain airbags during a rollover event.
Symptoms
- Airbag warning light on
- SRS fault stored
- Rollover protection inoperative
- Curtain airbags may not deploy in rollover
Common Causes
- Faulty rollover sensor
- Sensor mounting issue
- Wiring fault
- Control module communication error
Diagnostic Steps
- Scan SRS codes
- Inspect rollover sensor (typically mounted on roof or center of vehicle)
- Check wiring to sensor
- Measure circuit resistance
- Test sensor output with scan tool
Repair Notes
Replace rollover sensor. Ensure proper mounting and orientation per manufacturer specifications.
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
B0037 on Other Vehicles
Common Questions
What does code B0037 mean on a 2001-2005 BMW 325i E46?
B0037 stands for "Rollover Sensor Circuit". Malfunction in the rollover detection sensor. This sensor monitors vehicle orientation to deploy curtain airbags during a rollover event.
What are the symptoms of B0037 on a BMW 325i E46?
Common symptoms of B0037 include: Airbag warning light on, SRS fault stored, Rollover protection inoperative, Curtain airbags may not deploy in rollover.
What causes B0037 on a 2001-2005 BMW 325i E46?
Common causes of B0037 include: Faulty rollover sensor, Sensor mounting issue, Wiring fault, Control module communication error.