Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Convenience System Control Module, coding
- When supplied the control module is precoded according to the vehicle equipment.
- The coding is performed with the V.A.G 1551 scan tool. Refer to CODING TABLE, VEHICLES WITH CONVENIENCE SYSTEM > 05.01 or CODING TABLE, VEHICLES WITH CONVENIENCE SYSTEM 06.01 > .
- Connecting scan tool. Refer to Scan tool, connecting . Initiating On Board Diagnostic (OBD). Refer to Convenience system, initiating On Board Diagnostic (OBD) .
Indicated on display:
| Rapid data transfer HELP Select function XX |
- Press buttons -0- and -7- (with 07 the function "Code control module" is selected).
Indicated on display:
| Rapid data transfer Q 07 Code control module |
- Confirm entry with the -Q- button.
Indicated on display:
| Code control module Q Enter code number XXXXX (0-32000) |
- Enter code number according to table:
| Address word | Code number | |
| Vehicle equipment | 2 doors | 4 doors |
| 46 Comfort Convenience | ||
| Electric windows, one door | 00256 | 04096 |
| 46 Comfort Convenience | ||
| Electric windows, all doors | 00257 | 04097 |
| 46 Comfort Convenience | ||
| Electric windows with seat memory, one door | 00258 | 04098 |
| 46 Comfort Convenience | ||
| Electric windows with seat memory, all doors | 00259 | 04099 |
| Address word | Code number | |
| Vehicle equipment | 2 doors | 4 doors |
| 46 Comfort Convenience | ||
| Electric windows, one door | 00064 | 00258 |
| 46 Comfort Convenience | ||
| Electric windows, all doors | 00065 | 00259 |
| 46 Comfort Convenience | ||
| Electric windows with seat memory, one door | N/A | 00258 |
| 46 Comfort Convenience | ||
| Electric windows with seat memory, all doors | N/A | 00259 |
- Confirm entry with the -Q- button.
The control module 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 module, 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 module has not been programmed with the relevant data for the vehicle. A check must then be completed to see if the correct control module 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 module cannot be coded (correct control module, correct code number), the control module is malfunctioning.
Furthermore, at this point the door control module is called-up and checked.
End output:
- Press → button.
Indicated on display:
| Rapid data transfer HELP Select function XX |
- Press buttons -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 V.A.G 1551 scan tool.
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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.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.