what does safety system code B1242 mean for my Toyota Camry Eighth Generation (2018-present)

Solution

1. Preparation

• Gather tools and safety equipment, including gloves and safety glasses.
• Disconnect the negative battery cable and wait at least 10 minutes to ensure the airbag system is deactivated.

2. Inspect and Repair Wiring

• Remove the trim panels to access the airbag control module and wiring.
• Inspect all wiring and connectors for signs of wear or damage.
  • If damaged, repair or replace the affected wiring sections using solder and heat shrink tubing for waterproofing.
• Reconnect any loose connectors and ensure they are seated properly.

3. Replace Airbag Control Module (if necessary)

• If the airbag control module is faulty, remove it by unscrewing the mounting screws.
• Disconnect the electrical connectors carefully.
• Install the new airbag control module by connecting the electrical connectors and securing it with screws.
• Ensure all connections are tight and free of corrosion.

4. Reassemble and Test

• Reinstall any trim panels that were removed during the inspection.
• Reconnect the negative battery cable.
• Clear the B1242 code using the OBD-II scanner and perform a system check to ensure no codes reappear.