6901IN Airbag Diagnosis

WM 6901IN Airbag diagnosis

Tools






Maintenance: Airbag diagnosis

1. Function test of the airbag system:
1.1. Connect and switch on the PIWIS tester 9718.
1.2. Switch on ignition.
1.3. Establish communication with the airbag control unit.
1.4. Fault memory is read out: No fault stored.
1.5. Lock the vehicle from inside.

Information

- When you perform the drive link test:

- The hazard warning lights are activated.

- The central locking system is opened.

- Triggering of the airbag units is simulated.

1.6. Select the - Drive links - menu.
1.7. Observe instructions on the tester >>
1.8. Start the drive link test using F8 and proceed further according to the tester instructions.
1.9. The central locking system opens and the hazard warning lights flash. >> Switch ignition off and then on again. The hazard warning lights go off.
1.10. Exit the Drive links menu and read out the fault memory in the airbag control unit.
1.11. Remove ignition key. Disconnect battery. Route or isolate ground strap so that all contact with a ground carrier (e.g. body, seat frame) is avoided. => 90 Work instructions after disconnecting the battery

CAUTION

Danger of injury and material damage if airbag units are not handled correctly.

-> Always observe the safety regulations for handling airbag units. => 6X00IN01 Safety regulations for handling airbag and seat-belt pretensioner units
-> After the battery is disconnected, always wait for 1 minute before disconnecting the airbag plugs.

2. Simulate the fault:

Information

- To check the operation of the airbag system, a plug connection is disconnected from an airbag unit. A fault code - Static fault - must then be stored in the Porsche System Tester PIWIS Tester 9718.

2.1. Simulate the fault using the side airbag, for example. Move seat all the way forward.
2.2. Push down the safety cover on the plug socket -1- ( -arrow A- ) and hold in this position.
2.3. Press down locking mechanism -arrow B- on airbag connector -2- and remove connector -arrow C-.
2.4. Connect the battery and switch on ignition.
2.5. Read out fault memory. Static fault present.





Loosening seat airbag connector

3. Correct the fault:
3.1. Switch off ignition, disconnect the battery and wait for 1 minute.
3.2. Insert connector -2- at plug socket -1- ( -arrow A- ) until the connector engages securely.





Inserting seat airbag connector

4. Read out and delete faults:

Information

- Fault memory shows a sporadic fault.

4.1. Connect the battery, switch ignition on and read out the fault memory with the Porsche System Tester.
4.2. Erase fault memory.

Carry out work instruction after disconnecting the battery. => 90 Work instructions after disconnecting the battery