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Overview of the selectable functions > < Connecting fault reader V.A.G 1551 and selecting function (reading out control unit version)

Golf Mk3

Reading control unit version
Reading control unit version
–  Switch on ignition.
–  Press key -1- for “rapid data transfer” mode.
   
Indicated on display:
–  Press keys -1- and -5- (the address word of the vehicle system to be tested “Airbag” is entered with 15).
  
Rapid data transfer                 HELP
Input address word XX
Indicated on display:
–  Confirm entry with the Q key.
  
Rapid data transfer                   Q
15 Airbag
Indicated on display (see parts catalogue for latest control unit version).
t  Top line: Part No. of control unit, system designation (AIRBAG), Version number
t  Lower line: Code number (Dealership number → Note)
1)  Will be automatically stored in the control unit when entering the system.
–  Press → key.
  
1J0 909 608 A  AIRBAG VW 3 S      V03 ->
Coding 00065                   WSC12345
Indicated on display:
  Note
  
Rapid data transfer                 HELP
Select function XX
t  If one of the fault messages opposite appears in the display, the possible causes of the fault can be printed out with the HELP key.
  
Rapid data transfer                 HELP
Control unit not answering!
t  Ignition must be switched on.
  
Rapid data transfer                 HELP
K wire does not switch to positive!
t  Faults have occurred at the start of or during the programme (external sources of faults?).
  
Rapid data transfer                   ->
No signal from control unit!
t  Check diagnostic cables and also voltage supply and earth connection.
–  After rectifying the possible causes of the fault, once again enter the address word 15 for “Airbag” and confirm with the Q key.
  
Rapid data transfer                   ->
Fault in communication
Indicated in display after entering the address word 15:
and then the following appears in the display:
  
Rapid data transfer               
Tester sends the address word 15
Indicated on display (see parts catalogue for latest control unit version).
  
Rapid data transfer                   ->
Fault in communication          
1J0 909 608 A  AIRBAG VW 3 S      V03 ->
Coding 00065                   WSC12345

Overview of the selectable functions > < Connecting fault reader V.A.G 1551 and selecting function (reading out control unit version)