volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

General description > < Deactivating anti-theft coding
Radio navigation system “RNS 300”
Radio navigation system “RNS 300”
   
Radio navigation system RNS 300
  Note
t  The part number for the radio navigation system is printed on a sticker on the radio navigation system housing!
t  If the radio navigation system is renewed, it is very important that the anti-theft coding is activated → Operating Manual. The new code number should be given to the customer.
t  If the anti-theft code is not known it can be requested via the established systems. You need the identification number of the radio navigation system in order to make the request. It is located on a sticker on the side of the radio unit. In addition, the identification number is also stamped into the material of the side wall of the radio navigation system.
t  If a radio navigation unit from one vehicle is fitted into another vehicle, it is essential that the part number of the replacement unit is the same as that of the unit previously installed. Otherwise faults will occur with the navigation because the turn angle sensor setting in the radio navigation system will not be compatible with the vehicle.
  Note
t  When faced with complaints, it is absolutely necessary to know the functions and the operation of the radio navigation system.
t  Additional information → Operating instructions → No.199.
t  The anti-theft coding is equipped with a fixed code → Operating Manual.
t  In the event of repair work or fault finding, use → vehicle diagnostic, testing and information systemVAS 5051 or vehicle diagnostic and service information systemVAS 5052 in “Guided fault finding” mode → Current flow diagrams, Electrical fault finding and Fitting locations.
t  For perfect operation of the navigation system, the turn angle sensor in the unit has to be adjusted according to the installation position of the unit in the vehicle. Therefore, always note the part number when exchanging equipment. Incorrect installation could lead to a malfunction in the navigation system.
t  When the battery is reconnected, check operation of electrical equipment (radio, clock, convenience electronics and so on) according to the workshop manual or the Operating Manual.
t  The use of magnetic-base aerials may lead to permanent magnetisation of the vehicle roof, resulting in a malfunction in the compass module. If confronted with complaints about inaccurate or incorrect directional indication of the compass module, ask the customer if a magnetic-base aerial has been used before carrying out any repair work.
  N91-10582

General description > < Deactivating anti-theft coding