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Coding navigation system > < Display group overview

Polo Mk3

Radio, telephone, navigation
Self-diagnosis of Radio/Navigation system (RNS) with multi-function display (MFD)
Self-diagnosis of navigation part in RNS with MFD

Check prerequisites:

  • ◆ All fuses according to current flow diagram OK.
  • ◆ Supply voltage OK. (at least 9.5 V).
  • ◆ Fault reader V.A.G 1551 or V.A.G 1552 connected.

Connecting fault reader .

  • ‒ Switch on ignition.
  • ‒ Switch on printer with the Print key (indicator lamp in key lights up).
  • ‒ Press key 1 for "Rapid data transfer" mode.
 
→ Indicated on display:
Rapid data transfer     HELP
Input address word XX
  • ‒ Press keys 3 and 7. "37" enters the address word "Navigation".

Interrogate navigation unit version

  • ‒ Confirm entry with key Q.
 
→ Indicated on display:
3B0919887 B     Navigation           0001 ⇒
Coding     00000     WSC     00000
  • ◆ Upper line     Unit version No. of
              navigation system in RNS
              housing                         System designation
              (Navigation)                    Software version number
  • ◆ Lower line     Code number                    Dealership number1)

1)- Will be automatically stored in the radio unit when entering the system.

Indicated on display of radio/navigation system during self-diagnosis: "DIAG".

Notes:

  • ◆ Radio part and navigation part of the Radio/Navigation system have different unit version numbers.
  • ◆ The indicated unit version number is not the part number for the complete Radio/Navigation system.
  • ◆ The part number for the complete Radio navigation system is printed on a sticker on the radio/navigation system housing!
 
→ Will be indicated on display:
Control unit does not answer!     HELP
  • ‒ By pressing the "HELP" key a list of possible fault causes is printed out.
  • ‒ After rectifying faults, enter address word 37 again for Navigation and confirm with Q.
 
→ Indicated on display:
3B0919887 B     Navigation           0001 ⇒
Coding     00000     WSC     00000
  • ‒ Press ⇒ key.
 
→ Indicated on display:
Rapid data transfer     HELP
Select function XX
  • ‒ After the HELP key is pressed, a list of the possible functions is printed out.

List of selectable functions

Page

01 -

Interrogate navigation unit version

01-75

02 -

Interrogate fault memory

01-79

05 -

Erase fault memory

01-80

06 -

End output

01-82

07 -

Code navigation system

01-89

08 -

Read measured value block

01-92

10 -

Adaption

01-107

Notes:

  • ◆ Do not select further functions, which can be printed out after pressing the HELP key.
  • ◆ After the function is completed the V.A.G 1551 returns to the following start position:
 
→ Indicated on display:
Rapid data transfer     HELP
Select function XX

Interrogating fault memory

Note:

The displayed fault information is not constantly up-dated but only when initiating the self-diagnosis or with the function 05 "Erase fault memory".

  • ‒ Switch on printer with the Print key (indicator lamp in key lights up).
 
→ Indicated on display:
Rapid data transfer     HELP
Select function XX
  • ‒ Press keys 0 and 2. (The function "Interrogate fault memory" is selected with 02.)
 
→ Indicated on display:
Rapid data transfer     Q
02 - Interrogate fault memory
  • ‒ Confirm entry with key Q.
 
→ The number of stored faults appears in the display.
X faults recognized!    
  • The stored faults are displayed and printed out one after the other.
  • ‒ Carry out elimination of printed-out fault as stated in fault table => page 01-83 .
 
→ If "No fault recognised" is displayed the programme will return to the start point after pressing ⇒ key.
No fault recognized!     ⇒
 
→ Indicated on display:
Rapid data transfer     HELP
Select function XX

If something else is displayed:

=> Fault reader operating instructions

  • ‒ End output (function 06) => page 01-82
  • ‒ Switch off ignition and separate diagnostic connections.

Erasing fault memory

Note:

After erasing the fault memory its contents will automatically be indicated. If the fault memory cannot be erased, interrogate fault memory again and rectify faults.

Prerequisites

  • ◆ Fault memory interrogated .
  • ◆ All faults repaired.

After fault memory has been successfully interrogated:
 
→ Indicated on display:
Rapid data transfer      HELP
Select function XX
  • ‒ Press keys 0 and 5. (05 selects the "Erase fault memory" function.)
 
→ Indicated on display:
Rapid data transfer      Q
05 Erase fault memory
  • ‒ Confirm entry with key Q.
 
→ Indicated on display:
Rapid data transfer     ⇒
Fault memory is erased!

The fault memory is now erased.

  • ‒ Press ⇒ key.
 
→ Indicated on display:
Rapid data transfer     HELP
Select function XX

Notes:
     
    → If this appears in the display, the test sequence is faulty.
    Warning!    
    Fault memory was not interrogated
       
      → If this appears in the display, the test sequence is faulty.
      Rapid data transfer     ⇒
      Fault memory was not interrogated

      Adhere exactly to test sequence: First interrogate fault memory, if necessary repair faults, then erase.

      Ending output

      • ‒ Press keys 0 and 6. (The function "End output" is selected with 06.)
       
      → Indicated on display:
      Rapid data transfer     Q
      06 End output
      • ‒ Confirm entry with key Q.
       
      → Indicated on display:
      Rapid data transfer     Help
      Enter address word XX
      • ‒ Switch off ignition.
      • ‒ Disconnect fault reader V.A.G 1551.

      Fault table

      Notes:

      • ◆ The following table lists all the faults, with the corresponding 5 digit code numbers, that can be recognized by the Radio/Navigation system and printed out by the V.A.G 1551.
      • ◆ Fault codes appear only on print-out.
      • ◆ Before replacing components, check the wiring and connections to these components as well as the earth connections, according to current flow diagram.
      • ◆ When repair has been carried out, the fault memory must always be interrogated again with the fault reader V.A.G 1551 and erased.

      V.A.G. 1551 print out

      Possible fault cause

      Possible effects

      Fault elimination

      00481

      Traffic information control unit

      No communication

      Wiring defective
      Traffic information control unit defective

      Traffic information control unit not fitted

      No data transfer between radio/navigation system and traffic information control unit

      Dynamics not functioning

      - Read measured value block => Page 01-113

      Renew traffic information control unit

      V.A.G. 1551 print out

      Possible fault cause

      Possible effects

      Fault elimination

      00625

      Speed signal

      No signal

      Wiring open circuit to ABS control unit

      Navigation part not functioning

      - Read measured value block => Page 01-92
      Check wiring using current flow diagram
      Perform self-diagnosis of ABS system
      Renew radio/navigation system

      V.A.G. 1551 print out

      Possible fault cause

      Possible effects

      Fault elimination

      00668

      Vehicle voltage terminal 30

      Signal too weak*
      * This fault can also be stored if the starter was operated for more than 10 seconds.

      Battery voltage below 9.5 Volt
      Battery insufficiently charged
      Battery defective
      Alternator defective

      Navigation part does not function or function is poor

      - Read measured value block => page 01-92
      Check battery, charge if necessary
      => Electrical system, Repair group 27
      Check alternator
      => Current flow diagrams, Electrical fault finding and Fitting locations binder

      Several electrical consumers switched on

      Navigation function not OK.

      - Switch off all unnecessary consumers

      V.A.G. 1551 print out

      Possible fault cause

      Possible effects

      Fault elimination

      00862

      Navigation aerial
      (GPS) - R50/R52

      Open circuit/shortto positive
      Short toearth

      Wiring defective
      Navigation aerial (GPS) defective

      Navigation function not OK. (determination of position)

      - Read measured value block => page 01-92
      Check wiring using current flow diagram
      Check navigation aerial (GPS) or renew if necessary

      V.A.G. 1551 print out

      Possible fault cause

      Possible effects

      Fault elimination

      00867

      Connection to ABS control unit

      No signal

      Wiring defective
      ABS wheel sensors defective
      ABS control unit defective

      Navigation not OK.

      - Perform adaptation of the wheel impulse/the tyre circumference => page 01-92
      Perform ABS self-diagnosis
      Check wiring using current flow diagram

      V.A.G. 1551 print out

      Possible fault cause

      Possible effects

      Fault elimination

      01311

      Data bus information

      No signal

      Wiring defective
      Radio/navigation system
      defective
      Sound system (DSP) defective

      Sound system function (DSP) not OK.

      - Read measured value block
      => page 01-92
      Check wiring using current flow diagram

      65535

      Control unit defective

      Radio/navigation system defective

      Radio/navigation system functions not OK.

      - Renew radio/navigation system

      During the fault diagnosis it is not possible to recognize if a fault exists after fault rectification.

      Therefore after each fault rectification and erasure of the fault memory it is necessary to interrogate the fault memory again.

      Coding navigation system > < Display group overview