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Adapting engine control unit to electronic immobilizer > < Renewing engine control unit

Golf Mk4

Coding engine control unit
Coding engine control unit
If the appropriate code for the vehicle is not displayed or if the control unit has been renewed, the control unit must be coded as follows.
Special tools and workshop equipment required
t  Fault reader -V.A.G 1551- or vehicle system tester -V.A.G 1552- with diagnosis cable -V.A.G 1551/3-
Procedure
–  Connect fault reader -V.A.G 1551- or vehicle system tester -V.A.G 1552- and select control unit for engine electronics with “address word 01”. When doing this the ignition must be switched on. (Connect fault reader and select engine electronics control unit → Chapter.)
–  Press → button.
   
Indicated on display:
–  Press buttons 0 and 7 for function “Code control unit” and confirm entry with Q button.
  
Rapid data transfer                 HELP
Select function XX
Indicated on display:
–  Enter appropriate code number for vehicle and confirm with Q key.
  
Coding control unit                    Q
Input code number xxxxx   (0
Code numberFor vehicles with
00001Automatic gearbox
00002Manual gearbox
00003Four wheel drive

   
The fault reader -V.A.G 1551- display will show the control unit coding, e.g.:
–  Switch ignition off and then on again.
  Note
The coding entered will be activated by switching the ignition off and then on again. If after entering the valid code the ignition is not switched off and on again, the fault “Control unit incorrectly coded” cannot be erased.
–  Erase fault memory → Chapter
  
038906018D 1.9l R4 EDC G00SG 1817     ->
Coding 0002                 WSC XXXXX

Adapting engine control unit to electronic immobilizer > < Renewing engine control unit