why is my Volkswagen Golf MK7 (2015-2019) airbag light on and won't go off

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is turned off and the key is removed from the ignition.
• Disconnect the vehicle’s battery to prevent accidental airbag deployment.

2. Retrieve Fault Codes

• Use an OBD-II scanner to connect to the vehicle's diagnostic port.
• Record any fault codes related to the airbag system.
• Clear the fault codes and check if they reappear after a vehicle restart.

3. Inspect Airbag Components

• Airbag Control Module:

  • Locate the airbag control module, usually found under the driver’s seat or dashboard.
  • Disconnect the module and inspect the connectors for damage and corrosion.

• Seatbelt Buckles:

  • Remove the seat covers if necessary to access the seatbelt buckles.
  • Inspect the wiring and connectors for any visible damage or loose connections.

• Airbag Sensors:

  • Check the front and side airbag sensors for physical damage or signs of impact.
  • Ensure all connectors are securely attached.

4. Repair or Replace Faulty Components

• If any components are found to be faulty during inspection, replace them with OEM parts.
• Reassemble any disassembled components and ensure all connections are secure.

5. Reconnect Battery and Test

• Reconnect the vehicle’s battery.
• Start the vehicle and observe the dashboard for the airbag light.
• Use the OBD-II scanner again to confirm no new fault codes are present.