skoda Workshop Repair Guides

Skoda Workshop Service and Repair Manuals

Interrogating and erasing fault memory of engine control unit > < Meaning of the exhaust gas warning light K83
Connecting up the vehicle system tester V.A.G 1552 and selecting the control unit for engine electronics
Connecting up the 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, 3C-.
Test conditions
   
l  Fuses 1, 3, 7, 9, 10, 14, 16, 17, 24, 25, 28, 35, 48, 52, 56 and 61 must be o.k.
l  Battery voltage must be at least 11.5 volts.
l  Earth connections between engine (at gearbox housing) and body (below battery) o.k.
Procedure
  S01-0094
–  Fold back trim panel -1-.
–  Connect vehicle system tester -V.A.G 1552- with appropriate cable.
–  Select address word 01 “Engine electronics”.
  S01-0088
The control unit identification number and the coding are shown on the vehicle system tester display, e.g.:
t  036906034T = Part No. of the control unit (for current control unit version see spare part catalogue)
t  MARELLI 4LV = description of system and version
t  2615 = Programme number
t  Coding 00031 = Code the control unit, coding versions → Chapter
t  WSC xxxxx = workshop code the -V.A.G 1552 -, with which the last coding was performed (WSC 00000 appears provided the factory-entered coding has not been changed)
  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
t  Impossibility of performing certain functions (lambda control, actuation of activated charcoal filter system, etc.)
 
036906034T  MARELLI 4LV          2615 ->
Coding  00031                   WSC XXXXX

Interrogating and erasing fault memory of engine control unit > < Meaning of the exhaust gas warning light K83