volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Coding radio functions > < Self-diagnosis of radio part in RNS
Radio, telephone, navigation
Radio/Navigation system self-diagnosis (RNS)
Final control diagnosis

The final control diagnosis is part of the electrical check.

The fault memory must be interrogated after the final control diagnosis.

Initiating final control diagnosis

Note:

  • ◆ The -C- key can be used to exit the test sequence at any time.
  • ‒ Connect fault reader V.A.G 1551, select operating mode 1 "Rapid data transfer", switch on ignition and enter address word 56 "Radio".
 
→ Indicated on display:
Rapid data transfer     HELP
Select function XX
  • ‒ Press keys 0 and 3 (03 selects the "final control diagnosis" function).
 
→ Indicated on display
Rapid data transfer     Q
03 - Final control diagnosis
  • ‒ Confirm entry with key Q.
 
→ Indicated on display:
Rapid data transfer     ⇒
Loudspeaker

The loudspeakers are tested with a test current.

If a loudspeaker circuit is recognized by the system as defective then a fault message is stored in the fault memory.

  • ‒ Interrogate fault memory
  • ‒ Service wiring or loudspeaker if necessary, erase fault memory and repeat final control diagnosis.

When final control diagnosis is OK:

 
→ Indicated on display:
Final control diagnosis     ⇒
Radio display dash panel insert output

Currently the Polo is not equipped with a dash panel insert display, therefore this display is not relevant.

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

The tester is again in basic function.

Coding radio functions > < Self-diagnosis of radio part in RNS