what does code B0123 indicate in my Toyota RAV4 XA50 (2019-2024)

Solution

1. Preparation

• Tools Required: OBD-II scanner, multimeter, socket set, torque wrench.
• Disconnect the negative battery terminal and wait at least 10 minutes for the capacitors to discharge before working on the airbag system.

2. Inspect and Repair Wiring

• Sub-steps:
  1. Remove the lower dash panel on the passenger side to access the wiring harness.
  2. Inspect the wiring for any frays, breaks, or corrosion.
  3. Repair or replace damaged wiring as necessary.
  4. Reconnect any loose connectors securely.

3. Examine the Seat Occupancy Sensor

• Sub-steps:
  1. Remove the passenger seat following the manufacturer's guidelines.
  2. Disconnect the wiring harness from the seat occupancy sensor.
  3. Use a multimeter to test the sensor's resistance according to specifications.
  4. Replace the sensor if it is found to be faulty.
  5. Reinstall the seat and reconnect the wiring harness.

4. Check Airbag Module Connections

• Sub-steps:
  1. Access the front passenger airbag module, typically located under the dashboard.
  2. Ensure that all connectors are secure and free of corrosion.
  3. If any connectors are damaged, replace them.
  4. Reinstall the module securely.