B0044critical severityBody
Rear Impact Sensor Performance
on 2021 Ford Mustang Mach-E Standard Range Dual Motor AWD · RWD
What this code means
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.
Other Body codes on this vehicle
B0001
Driver Frontal Stage 1 Deployment Control
B0002
Driver Frontal Stage 2 Deployment Control
B0003
Passenger Frontal Stage 1 Deployment Control
B0004
Passenger Frontal Stage 2 Deployment Control
B0005
Driver Knee Airbag Deployment Circuit
B0006
Passenger Knee Airbag Deployment Circuit
B0007
Rear Left Side Airbag Deployment Circuit
B0008
Rear Right Side Airbag Deployment Circuit
B0009
Rear Center Airbag Deployment Circuit
B0010
Driver Side Airbag Deployment