Coding Table

Vehicle equipment		Code number
Central locking	Single door unlocking	00256
2- Window regulator	All door opening	00257
Central locking	Single door unlocking	00258
2- Window regulator and memory	All door opening	00259

-- Confirm entry with Q  button.

Control unit identification number with relevant letter index, code number (e.g. 00257) and workshop code (dealership number) will be displayed on the scan tool VAG 1551.

1C0959799F 6M CU Conv HLO 0004→  Coding 00257 WSC 12345

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

Subsequent to the successful coding, the door will be called up and shown in the display.

If an incorrect code number has been entered and accepted by the control unit (e.g. 04096), a display will subsequently follow indicating that no communication has taken place with for example rear door control unit.

Indicated on display:

Door control unit XXXXXX →  No answer

If the code number entered, is not accepted by the control unit, the display will show:

Indicated on display:

FAULT →  Coding 00200 not accepted

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 faulty.

Ending function:

-- 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 Q  button.

Indicated on display:

Rapid data transfer HELP  Enter address word XX

-- Switch off ignition and disconnect diagnostic connection.