On Board Diagnosis (OBD) For the Central Locking System, Initiating

On Board Diagnosis (OBD) For the Central Locking System, Initiating

Test prerequisites:
- Voltage supply and fuses for the respective system OK.
- To initiate the On Board Diagnosis (OBD) the ignition must be switched on "Terminal 15 on".

NOTE:
- If the display remains blank, check V.A.G 1551 voltage supply referring to Electrical Wiring Diagram.
- Additional operating information can be printed out depending on the program by pressing the HELP button of V.A.G 1551.
- The -> button serves to advance the program sequence.
- The PRINT button is used for switching on the printer (warning lamp in key lights up).
- Connecting scan tool. Scan Tool Connecting

- Switch on ignition.
- Switch on printer with the Print button (indicator lamp in button lights up).

Indicated on display:

Rapid data transfer HELP
Enter address word XX

Address word for central locking: 35

Indicated on display:

Rapid data transfer HELP
Enter address word XX

- Press buttons -3- and -5-.

Indicated on display after entering address word 35:

Rapid data transfer Q
35 Central locking

- Confirm entry with -Q- button.

and the following is Indicated on display:

Indicated on display:

Rapid data transfer
Tester sends address word 35

The scan tool V.A.G 1551 display will show the control unit identification, e.g.:

1C0962258F Central locking 0044 ->
Coding 00256 WSC 06037

- Press -> button.

Indicated on display:

Rapid data transfer HELP
Select function XX

NOTE:
- If one of the malfunction messages opposite appears in the display, the possible causes of the malfunction can be printed out with the HELP button.
- When doing this the ignition must be switched on.
- Malfunctions have occurred at the start of or during the program (external interference?).
- Check diagnosis wires as well as voltage supply and ground (GND) connection.

- After correcting the possible causes of the fault, once again enter the address word 35 for "Central locking" and confirm with the -Q- button.

Indicated on display after entering the address word 35:

Rapid data transfer
Tester sends address word 35

The scan tool V.A.G 1551 display will show the control unit identification, e.g.:

1C0962258F Central locking 0044 ->
Coding 00256 WSC 06037

- Press -> button.

Indicated on display:

Rapid data transfer HELP
Select function XX