volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Interrogating fault memory > < Interrogating control unit version
Body self-diagnosis
Self-diagnosis for central locking
Coding central locking control unit using fault reader V.A.G 1551

Notes:

  • ◆ When supplied the control unit is precoded according to the vehicle equipment.
  • ◆ The coding is performed with the fault reader V.A.G 1551 .
  • ‒ Connecting fault reader .
 
→ Indicated on display:
Rapid data transfer     HELP
Select function XX
  • ‒ Press keys -0- and -7- (with 07 the function "Code control unit" is selected).
 
→ Indicated on display:
Rapid data transfer     Q
07 Code control unit
  • ‒ Confirm entry with the Q key.
 
→ Indicated on display:
Code control unit     Q
Enter code number     XXXXX (0-32000)

- Enter code number according to table:

Coding table

Vehicle equipment

Code number

Central locking

1 door opening

00256

2 door

All door opening

00257

Central locking

1 door opening

04096

4 door

All door opening

04097

  • ‒ Confirm entry with the Q key.
 
→ The control unit identification number will be displayed with the corresponding letter index, the code number and the workshop code.
1C0962258     XX Cent. Lock.     00001⇒
Coding XXXXX     WSC XXXXX

If the contents of the display are as shown then the coding is successful.

If the code number entered is not accepted by the control unit, the previous coding will appear in the display:

 
→ Indicated on display:
1C0962258     XX     Cent. Lock     00001⇒
Coding XXXXX     WSC XXXXX

In this case the control unit has not been programmed with the relevant data for the vehicle.
A check must then be completed to see if the correct control unit for the vehicle has been installed (compare Part No. and letter index), or whether an incorrect code number has been entered.

  • ‒ Repeat coding.

If the control unit cannot be coded (correct control unit, correct code number), the control unit is defective.

Ending function:

  • ‒ Press ⇒key.
 
→ Indicated on display:
Rapid data transfer     HELP
Select function XX
  • ‒ Press keys -0- and -6- to end the output.
  • ‒ Confirm entry with the Q key.
 
→ Indicated on display:
Rapid data transfer     Q
06 End output
  • ‒ Switch off ignition.
  • ‒ Disconnect connector to fault reader V.A.G 1551.

Interrogating fault memory > < Interrogating control unit version