Test results

If the error type is MUTE, check:

- CAN line continuity

- Airbag control unit connector (control unit disconnected from the network)

 See E7030 AIRBAG

Go to Step 2

1. CAN line wiring interrupted

2. Airbag control unit connector

1. Restore the CAN line continuity

2.Connect the airbag control unit connector

If the type of error is 'BUS OFF'

Check for control unit errors using an Examiner in 'CAN information' mode

Check the insulation of the CAN High to earth

Check the insulation of the CAN Low to + battery

Go to Step 3

1. Network control unit faulty (CAN overloaded)

2. CAN short circuit to earth

3. Short circuit to + battery

1. Continue as instructed by the diagnostic equipment

2. Restore insulation to earth

3. Restore insulation to + battery

If the type of error is 'CAN adjustment'

Replace the airbag control unit and check that it is working properly

 Op. 5580C14 AIR BAG ECU - R+R

End of diagnosis