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Fabia Mk1

Reading measured value block
Reading measured value block
The input signals and voltages required for the operation of the Radio-Navigation System are constantly monitored by the self-diagnosis.
For fault finding, display the status of the input signals in the measured value blocks.
Procedure
–  Connect vehicle system tester -V.A.G 1552- and enter address word 37 for Navigation and confirm with Q.
   
Readout on display:
–  Enter 08 for the function “Read measured value block” and confirm entry with the Q.
  
Vehicle system test                 HELP
Select function XX
Readout on display:
–  Enter the desired three-digit display group number and confirm entry with the key Q.
  
Read measured value block              Q
Enter display group number      XXX
Measured value block 001
    
 Reading measured value block 1→Readout on display
 012.3 V60 %on 
     Status S contact
l  Can be checked during continuous output of measured values
l  Withdraw ignition key = readout “off”
l  Switch on S contact again = readout “on”
    Dimming of radio lighting in percent (only with headlights “on”)
l  0 to 99 %
   Voltage terminal 30
l  Measured behind filter
  Vehicle speed signal from speedo
l  0 or 1 (4 pulses for each revolution of tyre)
  

   
Measured value block 002
    
 Reading measured value block 2→Readout on display
 rev. g. offTml. 15 on   
      
     
   Status terminal 15
l  Ignition switched on = “tml. 15 on.”
l  Ignition switched off = “tml. 15 off.”
  Status of reversing light switch
l  Reverse gear engaged = “rev. g. on.”
l  Reverse gear not engaged = “rev. g. off.”
  

   
Measured value block 003
    
 Reading measured value block 3→Readout on display
 GPS aerialo.k.   
      
     
   Status GPS receiver
l  o.k.
l  interrupted
  GPS receiver
  

   
Measured value block 004
    
 Reading measured value block 4→Readout on display
 ext. displ.o.k.   
      
     
   Status external display
l  o.k.
l  n.o.k. 1)
  External display (dash panel insert)
  

1) Readout also if dash panel insert without second display is fitted.
   
Measured value block 005
    
 Reading measured value block 5→Readout on display
 Databuso.k.   
      
     
   Databus status
l  o.k.
l  n.o.k.
  Databus
  

   
Measured value block 006
    
 Reading measured value block 6→Readout on display
 left0 km/hright0 km/h 
     Vehicle speed right in km/h
    Right wheel speed sensor
   Vehicle speed left in km/h
  Left wheel speed sensor
  

   

Adjustment > < Actuator diagnosis