CAN-Bus Wiring, Repairing
WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2009 Audi S4, 2009 Audi A4, 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- Observe general notes for repairs on the vehicle electrical system → Vehicle Electrical System, General Information .
- Observe the notes on wiring harness and connector repairs → Wiring Harness and Connector Repairs, General Information including identifying repair locations.
An unshielded two-strand wire - 1 and 2 - with a cross section of 0.35 mm 2 or 0.5 mm 2 can be used as CAN-Bus wiring.
- CAN bus wires have the following color coding:
| Powertrain CAN Bus High | orange/black |
| Comfort CAN Bus High | orange/green |
| Infotainment CAN Bus High | orange/violet |
| CAN Bus Wiring Low | orange/brown |
- During repair work, both bus wires must have the same length. When twisting the wires - 1 and 2 - together, the - A - = 20 mm routing length must be maintained.
- While doing so, no section of wire must be greater than - B - = 50 mm without twisting of wires, e.g. in area of welded connectors - arrow -.