Operation CHARM: Car repair manuals for everyone.

Information Bus: Service and Repair






Wiring Harnesses and Connectors, Repairing

Safety Precautions

CAUTION!
When performing repairs on airbag and seat belt tensioner wiring harness, use only terminals, connectors and wires designated for it.

CAUTION!
Be sure to read the information regarding repairing the wiring harnesses for the airbag and pretensioner.

Observe country-specific regulations.

Pay attention to decals designating high voltage components. When performing repairs, residual voltage must be discharged.

The wiring harnesses for the airbag and the pretensioner may be repaired only with the (VAS 1978 B). Refer to => [ Airbag and Belt Tensioner Wires, Repairing ]. Airbag and Belt Tensioner Wires, Repairing

Refer to => User's instructions of (VAS 1978 B)

CAN Bus Wires, Repairing





Unshielded two-strand wiring - 1 - and - 2 - with a cross section of 0.35 mm2 or 0.5 mm2can be used as CAN-Bus wiring.

CAN bus wires have the following color coding:





Perform wiring harness repairs using only yellow wiring. Repaired areas are to be marked with yellow tape.

When repairing Bus leads, both wires must be of the same length. When twisting together wires - 1 - and - 2 -, length of lay of - A -: 20 mm must be observed.

While doing this, no section of the wire, e.g. in area of crimp connectors - arrow -, may be greater than - B -: 50 mm without twisting of the wires.