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Octavia 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 select the address word 37 “Navigation” → Anchor.
   
Readout on display:
–  Enter 08 for the function “Read measured value block” and confirm the entry with the key Q.
  
Vehicle system test               HELP
Select function XX
Readout on display:
  
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 light "on")
l  0 up to 99%
  Voltage tml. 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
Reverse OFFTml. 15 ON   
     
     
    
  Status tml. 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 aerial O.K.   
     
     
    
  Status GPS receiver
l  O.K.
l  N.O.K.
 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 (up to SG 3B0919887 A)
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

   
Measured value block 006 (as of SG 3B0919887 D)
Reading measured value block 6 Readout on display
left0 km/h   
     
     
    
  Vehicle speed left in km/h
 Left wheel speed sensor

   

Adaptation > < Actuator diagnosis