976623 Installing wire harness for airbag

WM 976623 Installing wire harness for airbag

Tools






Preliminary work

Release main wire harness around dashboard area and centre console. -> 9709 Removing and installing main wire harness - section on "Removing" 970919 Removing and Installing Main Wiring Harness

Release main wire harness around the floor area and left-hand side. -> 9709 Removing and installing main wire harness - floor area and left-hand side - section on "Removing" 970919 Removing and Installing Main Wiring Harness - Floor Area and Left-Hand Side

Release main wire harness around the floor area and right-hand side. -> 9709 Removing and installing main wire harness - floor area and right-hand side - section on "Removing" 970919 Removing and Installing Main Wiring Harness - Floor Area and Right-Hand Side

Release main wire harness in the engine compartment. -> 9709 Removing and installing main wire harness - engine compartment - section on "Removing" 970919 Removing and Installing Main Wiring Harness

Installing wire harness for airbag

WARNING

Incorrect handling of airbag units.

- Danger of injury and material damage.

-> Always observe the safety regulations for handling airbag units -> 69 Safety regulations for vehicles with airbag and belt tensioner.
-> 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
-> Before the connector is disconnected from the triggering unit, always wait for 1 minute before disconnecting the battery. The airbag triggering unit must not be removed with the plug plugged in.





Overview of airbag wire harness

1. Disconnect the connectors of the damaged airbag line on the affected components. The illustration shows the connector on the acceleration sensor under the seat as an example.





Disconnecting connector for airbag wire harness

2. Insert the latch -2- on the connector -1- ( -arrow A- ) until it engages securely.
3. Release locking mechanism on the latch -2- ( -arrow B- ) and pull off connector -1- ( -arrow C- ).
4. Cut off the connector of the damaged airbag line, isolate it and tie it to the wire harness.

Remove contact on the connector for airbag triggering unit
5. Fold up storage box -A-.





Folding up storage box

6. Unscrew fastening screws and remove cover -arrow B-.
7. Lift rear centre console trim panel (unclip 4x), disconnect connector and remove.





Lifting rear centre console trim panel and disconnecting connector

8. Fold up centre console trim panel to the front.
9. Push in plug lock -1- , fold over lever -2- ( -arrow C- ) and pull off connector -arrow D-.





Pulling connector off airbag triggering unit

10. Remove tie-wrap -arrow- at connector.





Pulling contact strip out of connector housing

11. Release contact strips on both sides of the connector housing -1- ( -arrows a- ) and pull the contact strips -2 and 3- out of the connector housing -1-.
12. Remove binding band on wire harness and push contact strip -2- down off the contact strip -3-.





Pushing contact strips apart

Information

Use the airbag wiring diagram for assigning the airbag lines. -> 97 Wiring diagram for Cayenne (9PA) model year '03-> 97 Wiring diagram for Cayenne (9PA) model year '04

13. Release contact of the damaged airbag line using the press-out tool 1575-1P from the press-out tools set for Cayenne NR.155-3 ( -arrow a- ) and pull out of the contact strip.





Pressing out contacts

Install new airbag line
14. Connect connector for the new airbag line to the affected components until the connector engages securely. The illustration shows the connector on the acceleration sensor under the seat as an example.





Connecting connector for airbag wire harness

15. Route the new airbag line along the main wire harness, guide it through the existing cable ducts and tie it to the main wire harness using tie-wraps.





Routing and securing airbag line

16. Plug new airbag line into the contact strip until the contact engages securely.





Pressing in contacts

17. Push contact strip -2- onto the contact strip -3-. Attach new binding band onto wire harness.





Pushing contact strips together

18. Insert the contact strips -2 and 3- into the connector housing until they engage securely.





Inserting contact strip into connector housing

19. Affix new tie-wrap -arrow-.
20. Connect connector -arrow D- and lock -arrow C- until the connector lock engages securely.





Connecting connector for airbag triggering unit

21. Press in the connector until it is felt to engage.





Connecting connector and clipping in rear centre console trim panel

22. Insert centre console trim panel and clip in.
23. Insert cover and screw down with the fastening screws -arrow B-.





Folding down storage box

24. Fold down storage box.
25. Read out fault memory and erase it if necessary.

Subsequent work

Install components for releasing main wire harness in engine compartment. -> 9709 Removing and installing main wire harness - section on "Installing" 970919 Removing and Installing Main Wiring Harness

Install components for releasing main wire harness around floor area and right-hand side. -> 9709 Removing and installing main wire harness - floor area and right-hand side - section on "Installing" 970919 Removing and Installing Main Wiring Harness - Floor Area and Right-Hand Side

Install components for releasing main wire harness around floor area and left-hand side. -> 9709 Removing and installing main wire harness - floor area and left-hand side - section on "Installing" 970919 Removing and Installing Main Wiring Harness - Floor Area and Left-Hand Side

Install components for releasing main wire harness around dashboard area and centre console. -> 9709 Removing and installing main wire harness - section on "Installing" 970919 Removing and Installing Main Wiring Harness