Convenience System Control Unit, Coding

1999 Volkswagen Jetta Sedan (9M2) V6-2.8L (AFP)SECTION Convenience System Control Unit, Coding



Convenience System Control Unit, Coding Using Scan Tool VAG1551


NOTE:
- When supplied the control unit is precoded according to the vehicle equipment.
- The coding is performed with the scan tool VAG 1551.


- Connecting scan tool, initiating On Board Diagnostic (OBD).
Refer to "Scan Tool Testing/Scan Tool Connecting and Initial Checks", under "Restraint Systems", Testing and Inspection
Convenience System, Initiating on Board Diagnostic (OBD)

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 button.

Indicated on display:


Code control unit Q
Enter code number XXXXX (0-32000)


- Enter code number according to table:

Coding table







- Confirm entry with the Q button.

The control unit identification number will be displayed with the appropriate index letter, the code number and the workshop code.


1J0959799J 03 Conv. cent. CU 0001 ->
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:


1J0959799J 03 Conv. cent. CU 0001 ->
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 malfunctioning.

Furthermore, at this point the door control unit is called-up and checked.

End output:

- Press -> button.

Indicated on display:


Rapid data transfer HELP
Select function XX


- Press keys -0- and -6- to end the output.

Indicated on display:


Rapid data transfer Q
06 End output


- Confirm entry with the Q button.

Indicated on display:


Rapid data transfer HELP
Enter address word XX


- Switch off ignition.
- Disconnect connector to scan tool VAG 1551.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
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  • You are not confident in the next step or safety outcome.