B0066
Passenger Seat Position Sensor Circuit
2019-2024 BMW 3 Series G20 2.0L I4 Turbo B48
Moderate SeverityBodyGeneric (SAE)
Description
Malfunction in the passenger seat position sensor circuit used by the SRS system.
Symptoms
- Airbag light on
- SRS fault stored
- Passenger airbag force may not be optimized
Common Causes
- Faulty seat position sensor
- Wiring damage
- Sensor calibration lost
- Seat track debris
Diagnostic Steps
- Scan SRS codes
- Test sensor output
- Inspect wiring at seat track
- Move seat through range
Repair Notes
Replace or recalibrate passenger seat position sensor.
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
- B0009Rear Center Airbag Deployment Circuit
- B0010Driver Side Airbag Deployment
B0066 on Other Vehicles
Common Questions
What does code B0066 mean on a 2019-2024 BMW 3 Series G20?
B0066 stands for "Passenger Seat Position Sensor Circuit". Malfunction in the passenger seat position sensor circuit used by the SRS system.
What are the symptoms of B0066 on a BMW 3 Series G20?
Common symptoms of B0066 include: Airbag light on, SRS fault stored, Passenger airbag force may not be optimized.
What causes B0066 on a 2019-2024 BMW 3 Series G20?
Common causes of B0066 include: Faulty seat position sensor, Wiring damage, Sensor calibration lost, Seat track debris.