VW Polo manuals

Volkswagen Polo Service & Repair Manual: CAN Bus Wires, Repairing

Unshielded two-strand wiring -1- and -2- with a cross section of 0.35 mm2 or 0.5 mm2 can be used as CAN bus wiring.
The color coding of CAN bus wires can be found in the following table:
 

CAN Bus Wires, Repairing

CAN High wire, powertrain orange/black
CAN High wire, Convenience orange/green
CAN High wire, Infotainment orange/violet
CAN-Low lead (all) orange/brown
 
Repairs on CAN-Bus wires can be performed with repair wire with matching cross section and also with twisted wires “green/yellow” or “white/yellow” from Parts Catalog.
When repairing Bus leads, both wires must be of the same length. When twisting together wires -1- and -2-, the lay length of -A- = 20 mm must be observed.
While doing this, no section of the wire, for example, in area of crimp connectors -arrow-, may be greater than -B- = 50 mm without twisting of the wires.
Wrap repair points with yellow adhesive tape to mark a performed repair.
   
Airbag and Belt Tensioner Wire Repair Information
  Note Observe general notes for repairs on the vehicle electrical system. Refer to → Chapter „Vehicle Electrical System, General Repair ...

Antenna Wires, Replacing
A new repair concept has been developed for repairing antenna wires. Refer to → Chapter „Antenna Wires, Repairing“. Instead of a ...

Other materials:

Charging, replacing, disconnecting and connecting the vehicle battery
First read and observe the introductory information and safety warningsCharging the battery The vehicle battery should be charged by a qualified workshop, as the technology used in factory-fitted batteries requires voltage-limited charging . Volkswagen recommends using a Volkswagen dealership ...

Frequently asked questions
If you suspect that there is a fault in the vehicle or if your vehicle has been damaged, read and observe the following information before contacting a Volkswagen dealership or qualified workshop. You may also find useful information in the index under the headings Things to note or Checklist. ...

A/C System, Operating after Charging
  Caution If it is suspected that chemicals were added to the refrigerant circuit to seal leaks, do not connect the A/C service station and do not extract the refrigerant. ...

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