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Repairing CAB-Bus system cables > < Notes on harness repair work

Polo Mk4

Repairing airbag and seat belt pre-tensioning cables
Repairing airbag and seat belt pre-tensioning cables
For supplementary repairs on airbag and seat belt pre-tensioning cables, observe the following instructions:
  WARNING
t  Badly execute repair work on the harnesses of airbag and seat belt pre-tensioning cables may cause faults in the passenger protection system.
t  Repair work involving airbag and seat belt pre-tensioning cables should only be carried out with terminals, connectors and cables designed for this purpose → Electronic Parts Catalogue.
  Note
t  Repair work involving airbag and seat belt pre-tensioning cables should only be carried out with the Harness repair set -VAS 1978-/Harness repair set -VAS 1978A-.
t  Observe the stickers on the vehicle that indicate the parts with high voltage. In case of repairs, the residual voltage must be crained → Body - Internal assembly works; Rep. gr.69.
   
t  No more than two sections of the airbag and seat belt pre-tensioning cables should be repaired. Repaired sections increase the electric resistance of the cable, an may cause faults in the auto-diagnosis system of the vehicle.
t  In the event of repair work on the airbag and seat belt pre-tensioning cables, the pressure connection should undergo retraction in order to avoid corrosion.
t  Repairs to harnesses should only be carried out with yellow cables.
t  Repairs to harnesses should not be reintegrated into the lining of the original harness of the vehicle. They should be identified with a yellow adhesive tape.
t  These yellow cables and all locations identified with the yellow tape indicate previous repairs
  N97-10489
t  Repair work around the airbag and seat belt pre-tensioners should be carried out at least 11.81 in from the next contact box. In conjunction with identifying the yellow tape, this procedure allows immediate verification of the areas to be repaired.
t  The cables of the activation units (Airbags) have the twisting with the gap of 20 ± 5 mm as series. This gap is ensured in the serial manufacturing via normative part numbers for the pairs of cables, and it is vital to maintain it in the repair of the twisted cable length.
  N97-0231
t  In repair work, the cables in the activation units (airbags) should be of the same length. While stranding cables -1- and -2- it is essential to maintain the A = 20 ± 5 mm gap.
t  There must not be any repair to the cable -arrow- that results in a length of more than B = 100 mm without the cables being stranded.
  N97-0261

Repairing CAB-Bus system cables > < Notes on harness repair work