how to fix B0090 code in Ford Explorer Sixth Generation (2020-present)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the vehicle battery to ensure safety while working on the airbag system.

Tools Required:

• OBD-II scanner
• Multimeter
• Socket set
• Wiring diagram (for reference)

2. Inspect and Repair Wiring

• Remove the passenger seat if necessary to access wiring.
  • Use a socket set to remove bolts securing the seat to the floor.
  • Disconnect the seat wiring connector.
• Visually inspect the wiring harness for damage or disconnections.
• Repair or replace any damaged wiring or connectors as needed.

3. Replace Occupancy Sensor (if necessary)

• If the occupancy sensor is determined to be faulty:
  • Remove the passenger seat (as per Step 2).
  • Disconnect the sensor from the harness.
  • Install the new sensor by connecting it to the wiring harness and securing it in place.
  • Reinstall the passenger seat and torque the bolts to manufacturer's specifications (typically around 30-40 ft-lbs).

4. Reconnect Battery and Clear Codes

• Reconnect the battery and ensure all connections are secure.
• Use the OBD-II scanner to clear the B0090 code and reset the airbag system.
• Test drive the vehicle to ensure the airbag system functions correctly.