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Home >> Porsche >> 2008 >> Cayenne Base, Automatic >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Wiring System (Data Link Connectors, Pwr Dist., Grnd Dist.) >> 97 - Cables >> WM 976623 Installing Wire Harness For Airbag (All Models) >> Installing Wire Harness For Airbag

Installing Wire Harness For Airbag

WARNING: Incorrect handling of airbag units
  • Triggering of airbag unit
  • System faults can occur

→ Switch off ignition and remove ignition key or remote control (hand-held transmitter).

→ A voltage supply (e.g. battery charger) must not be connected to the external power supply/jump-lead starting terminals.

→ Disconnect the battery and insulate the ground strap so that all contact with a ground carrier is avoided.

→ Wait 1 minute after disconnecting the battery.

→ Only detach connector on the triggering unit after the waiting time has elapsed.

→ Make sure that no foreign objects are located in front of the airbag unit during installation.

→ Replace damaged parts during removal.

→ Always position airbag units so that the blow-out opening is facing upwards, e.g. crest on driver's airbag.

→ Do not position anything on the airbag units.

→ If removed for an extended period, the airbag units must be stored in a safe place.

→ Airbag units must not come into contact with grease, oil, detergents, liquids, or similar substances.

→ Do not expose airbag units to temperatures above 90°.

→ Do not remove the short-circuit spring on the plug-in contacts.

→ Ignition and preparations may only be carried out by skilled staff, supervised by a second responsible person.

→ Before disposal, the airbag unit must be rendered harmless by electrical ignition performed in accordance with all precautionary measures, thereby preventing it from being used incorrectly.

Fig 1: Overview Of Airbag Wire Harness
G09416516Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  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.
    Fig 2: Disconnecting Connector For Airbag Wire Harness
    G09416517Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  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-  .
    Fig 3: Folding Up Storage Box
    G09416518Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  6. -arrow B-  Unscrew fastening screws and remove cover.
  7. Lift rear centre console trim panel (unclip 4x), disconnect connector and remove.
    Fig 4: Lifting Rear Centre Console Trim Panel And Disconnecting Connector
    G09416519Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  8. Fold up centre console trim panel to the front.
  9. Push in plug lock -1-  , fold lever -2-  over -arrow C-  and pull off plug -arrow D-  .
    Fig 5: Pulling Connector Off Airbag Triggering Unit
    G09416520Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  10. Remove tie-wrap -arrow-  at connector.
    Fig 6: Pulling Contact Strip Out Of Connector Housing
    G09416521Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  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-  .
    Fig 7: Pushing Contact Strips Apart
    G09416522Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Information 

    Use the airbag wiring diagram for assigning the airbag lines.

  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.
    Fig 8: Pressing Out Contacts
    G09416523Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    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.
    Fig 9: Connecting Connector For Airbag Wire Harness
    G09416524Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  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.
    Fig 10: Routing And Securing Airbag Line
    G09416525Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  16. Plug new airbag line into the contact strip until the contact engages securely.
    Fig 11: Pressing In Contacts
    G09416526Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  17. Push contact strip -2-  onto the contact strip -3-  . Attach new binding band onto wire harness.
    Fig 12: Pushing Contact Strips Together
    G09416527Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  18. Insert the contact strips -2 and 3-  into the connector housing until they engage securely.
    Fig 13: Inserting Contact Strip Into Connector Housing
    G09416528Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  19. Affix new tie-wrap -arrow-  .
  20. Connect connector -arrow D-  and lock -arrow C-  until the connector lock engages securely.
    Fig 14: Connecting Connector For Airbag Triggering Unit
    G09416529Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  21. Press in the connector until it is felt to engage.
    Fig 15: Connecting Connector And Clipping In Rear Centre Console Trim Panel
    G09416530Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  22. Insert centre console trim panel and clip in.
  23. Insert cover and screw down with the fastening screws -arrow B-  .
    Fig 16: Folding Down Storage Box
    G09416531Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  24. Fold down storage box.
  25. Read out fault memory and erase it if necessary.