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Interrogating and erasing fault memory > < Technical data of self-diagnosis

Fabia Mk1

Connecting vehicle system testerV.A.G 1552 and selecting the control unit for engine electronics
Connecting vehicle system tester -V.A.G 1552- and selecting the control unit for engine electronics
Special tools and workshop equipment required
t  Vehicle system tester -V.A.G 1552- with cable -V.A.G 1551/3, 3A, 3B oder 3C-
Test conditions
l  Battery voltage at least 11.5 volts
l  Earth connection to engine and gearbox O.K.
l  Fuses according to current flow diagram O.K.
Procedure
   
–  Connect vehicle system tester -V.A.G 1552- with appropriate cable.
Once the vehicle system tester has been connected:
–  Switch on ignition or start → Anchor engine depending on the function desired.
  Note
t  If “data transfer errors” are displayed as a result of an incorrect entry, disconnect cable at vehicle system tester, connect it in again and repeat all the steps.
  S01-0087
t  If one of the following messages appears in the display, test the diagnostic cable → Current flow diagrams and Fitting locations or → Operating Instructions of vehicle system tester.
  
Vehicle system test                 HELP
The control unit does not respond
  
Vehicle system test                 HELP
Fault in communication set-up
  
Vehicle system test                 HELP
K cable does not connect to earth
–  Operate the vehicle system tester by referring to the read-out on the display:
  
Vehicle system test                 HELP
K cable does not connect to pos. term.
Readout on display:
–  Enter address word 01 “Engine electronics” and confirm entry with Q.
  
Vehicle system test                 HELP
Enter address word XX
The control unit identification appears in the display, e.g.:
t  045906019BM = Part No. of the control unit (for current control unit version see spare part catalogue)
t  1.4 ltr. = engine displacement
t  R3 = engine version (3 cyl. in-line engine)
t  EDC = Injection system (Electronic Diesel Control)
t  CC = Cruise control system activated (only on models with CCS)
t  000 = Control unit ID
t  MG = Manual gearbox
t  4958 = Data status (Software version of the control unit)
t  Coding 00002 = Coding variant of the control unit
t  WSC XXXXX = Workshop code
  Note
t  If the control unit version displayed does not correspond to the vehicle, replace the control unit → Chapter
t  Incorrect coding of the engine control unit results in:
t  Handling problems (jerky gear change, load change jolts etc.)
t  Increase in fuel consumption
t  Increase in pollution
t  Storage of non-existent faults in fault memory
  
Vehicle system test                 HELP
The control unit does not respond
045906019BM 1.4l R3  EDC G000SG  4958 ->
Coding 00008                   WSC XXXXX

Interrogating and erasing fault memory > < Technical data of self-diagnosis