Rollover Sensor Performance
2003-2009 Toyota 4Runner 4.7L V8
Description
The rollover sensor output is outside expected parameters during self-test or normal operation.
Symptoms
- Airbag warning light on
- SRS fault stored
- Rollover protection degraded
Common Causes
- Sensor calibration lost
- Sensor internal failure
- Vehicle orientation altered by suspension modification
- Excessive vibration at sensor mount
Diagnostic Steps
- Read SRS freeze frame data
- Check sensor output with scan tool
- Verify vehicle is on level ground during test
- Inspect sensor mounting
Repair Notes
Replace rollover sensor. Recalibrate if procedure available.
Related Codes
Other Body Codes
- B0001Driver Frontal Stage 1 Deployment Control
- B0001Driver Frontal Stage 1 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0005Driver Knee Airbag Deployment Circuit
- B0005Driver Knee Airbag Deployment Circuit
B0038 on Other Vehicles
Toyota 4Runner
2003-2009 4.0L V6
Toyota 4Runner
2010-2024 4.0L V6
Toyota 86
2017-2020 2.0L H4
Toyota Alphard
2023-2025 2.4L I4 Turbo T24A-FTS
Toyota Alphard
2023-2025 2.5L I4 Hybrid A25A-FXS
Toyota Altezza
1998-2005 2.0L I4 3S-GE BEAMS
Toyota Altezza
1998-2005 2.0L I6 1G-FE
Toyota Aqua
2011-2021 1.5L I4 Hybrid 1NZ-FXE
Common Questions
What does code B0038 mean on a 2003-2009 Toyota 4Runner?
B0038 stands for "Rollover Sensor Performance". The rollover sensor output is outside expected parameters during self-test or normal operation.
What are the symptoms of B0038 on a Toyota 4Runner?
Common symptoms of B0038 include: Airbag warning light on, SRS fault stored, Rollover protection degraded.
What causes B0038 on a 2003-2009 Toyota 4Runner?
Common causes of B0038 include: Sensor calibration lost, Sensor internal failure, Vehicle orientation altered by suspension modification, Excessive vibration at sensor mount.