what does the safety code B0101 mean in my Toyota RAV4 XA40 (2013-2018)?

Solution

1. Preparation

• Tools Required: OBD-II scanner, multimeter, socket set, screwdriver set
• Ensure the vehicle is parked on a flat surface and the ignition is turned off.
• Disconnect the negative terminal of the battery to prevent accidental airbag deployment.

2. Inspect Airbag Connector

• Remove the steering wheel cover and airbag module using the appropriate socket to access the airbag connector.
• Examine the airbag connector for any signs of damage or corrosion.
• If any damage is found, replace the connector or repair the wiring as necessary.

3. Test Airbag Circuit

• Use a multimeter to measure the resistance across the airbag terminals.
• Compare the resistance reading with the manufacturer's specifications (typically around 2-3 ohms).
• If the reading is out of specification, replace the driver's airbag.

4. Reassemble Components

• Securely reattach the airbag module and steering wheel cover using the appropriate torque specifications (usually around 7-10 ft-lbs).
• Reconnect the negative terminal of the battery.

5. Clear Codes and Test

• Use the OBD-II scanner to clear the B0101 code from the system.
• Start the vehicle and check if the airbag warning light illuminates again.
• Perform a test drive to ensure the airbag system is functioning correctly.