how to diagnose B0010 code on Toyota Highlander XU70 (2020-Present)

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety while working on the airbag system.
• Wait at least 10 minutes after disconnecting the battery to allow the airbag system to discharge.

2. Inspect and Repair Wiring

• Tools Required: Wire crimpers, electrical tape, multimeter.
• Inspect the wiring harness for any signs of wear or damage.
• Repair or replace damaged wires or connectors as necessary.
• Ensure all connections are secure and properly insulated with electrical tape.

3. Replace Airbag Module (if necessary)

• Tools Required: Socket set, torque wrench.
• Remove the screws securing the airbag module (usually located under the steering wheel).
• Disconnect the airbag module's connector carefully to avoid triggering the airbag.
• Install the new airbag module by reversing the removal steps, ensuring the connector is securely attached.
• Torque the screws to the manufacturer's specifications (typically around 7-10 ft-lbs).

4. Reconnect Battery and Test System

• Reconnect the negative battery terminal.
• Clear any stored codes using the OBD-II scanner.
• Perform a diagnostic test to ensure the system operates correctly without returning any fault codes.