- Turn off the ignition.
- Verify the air bag light comes on when the ignition is turned on.
- Check the air bag light goes out after about 6 seconds.
- If any of these checks fails, the air bag light circuit may be faulty.
- The circuit may have a loose connection or a damaged wire.
Step 2: Check the Air Bag Sensor
- Turn off the ignition.
- Disconnect the negative battery terminal.
- Wait 10 minutes for the SRS (Supplemental Restraint System) system to discharge.
- Locate the air bag sensor under the dashboard, usually on the driver's side.
- Disconnect the electrical connector from the air bag sensor.
- Turn on the ignition.
- Check the air bag light is on and does not go out.
- If the air bag light stays on, the air bag sensor may be faulty.
Step 3: Check the Air Bag Control Unit
- Turn off the ignition.
- Disconnect the negative battery terminal.
- Wait 10 minutes for the SRS system to discharge.
- Locate the air bag control unit, usually under the driver's seat.
- Disconnect the electrical connector from the air bag control unit.
- Turn on the ignition.
- Check the air bag light is on and does not go out.
- If the air bag light stays on, the air bag control unit may be faulty.
Step 4: Repair or Replace the Faulty Component
- If you have found the faulty component, you will need to repair or replace it.
- If you are not confident in doing this yourself, you should take your car to a qualified mechanic.
*Note: Be sure to perform these steps with caution, as the airbag system can be dangerous. If you are uncomfortable with any of these steps, please consult a qualified mechanic.*
