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only be repaired using wiring harness repair set -VAS 1978- / wiring harness repair set -VAS 1978A- / wiring harness repair set -VAS 1978 B- . ♦ Observe vehicle stickers indicating high voltage components. Before carrying out repairs, allow residual voltage to dissipate ⇒ General body repairs, interior; Rep. Gr. 69 . ♦ For repairs to wiring in the airbag and belt tensioner system, a maximum of two positions may be repaired. The more the repairs there are in the wiring, the greater the resistance and this can trigger faults in the self-diagnosis of the system. ♦ To avoid corrosion, the crimp connectors are always to be shrink-fitted when performing airbag or belt tensioner wiring harness repairs. ♦ Only use yellow wires for repairs to wiring harnesses. own wiring harness and mark the area of repair clearly with yellow insulating tape. ♦ Repairs in the area of the airbag or belt tensioner should not be more than 30 cm from the next contact housing. Together with the yellow insulating tape, this gives a clear indication of repairs that have already been carried out. ♦ In series production, the wires leading to the trip units (airbags) are twisted with a length of lay of 20 mm ±5 mm. This length of lay is ensured in series production by means of standard- part numbers for pairs of wires and must be adhered to under all circumstances when sections of twisted wires are repaired. ♦ During repairs, the wiring to the trip units (airbags) must have the same length. When wires -1- and -2- are twisted, the length of lay of A = 20 mm ±5 mm must be adhered to under all cir‐ cumstances. ♦ It must be ensured that no part of the wiring, including wiring in the vicinity of crimp connectors -arrow-, is longer than B = 100 mm without the wires being twisted. 2.4.3 Notes on repairs to fibre-optic cables There is no provision for fibre-optic cable repairs at Volkswagen. In the event of repairs, the entire fibre optic wiring harness must be replaced. To do this, the following safety precautions must be observed: should be no tighter than 25 mm. ♦ Do not route fibre-optic cables over sharp edges. with bare hands. 2. Repairs to wiring harnesses and connectors 93 |