Initiating On Board Diagnostic Program

Requirements
- Voltage supply and fuses OK
- "Terminal 15 on" required to initiate On Board Diagnostic (OBD) (ignition switched on)


NOTE:
- If the display remains blank, check the VAG 1551 voltage supply. See Wiring Diagrams.
- Additional operating instructions can be obtained by pressing the VAG 1551 Scan Tool (ST) "HELP" button.
- The -> button is used to advance through the program sequence.
- The "PRINT" button is used for switching on the printer (lamp in button lights up).


- Connect VAG 1551 scan tool. VAG 1551 Scan Tool Connecting
- Switch ignition on.
- Switch printer on with "PRINT" button (lamp in button lights up).
- Press button -1- to select "Rapid data transfer".

Indicated on display:

Rapid data transfer HELP
Insert address word XX


Address word for the comfort system: 46

Indicated on display:

Rapid data transfer HELP
Insert address word XX

- Press buttons -4- and -6- to insert "Comfort System" address word 46.

Indicated on display:

Rapid data transfer Q
46 - Comfort System

- Press -Q- button to confirm input.

Indicated on display:

Rapid data transfer
Scan Tool sends address word 46

The control module identification of the central control module (Comf cent. CU) is indicated on the VAG 1551 scan tool display.

1J0959799J 03 Comf. cent. CU 0001 ->
Coding XXXXX WSC XXXXX

The program can be advanced to the "Rapid data transfer, select function XX" option using the -C- button.

- Press -> button.

Indicated on display (briefly):

Please wait

and then the control module identification of the driver's door control module is indicated on the VAG 1551 scan tool display.

1J0 959 801A 03 Door CU FS0022 ->

- Press -> button.

Indicated on display (briefly):

Please wait

and then the passenger's door control module identification is indicated on the VAG 1551 scan tool display.

1J0 959 802B 03 Door CU BF0022 ->

- Press -> button.

Indicated on display (briefly):

Please wait

and then the left rear door control module identification is indicated on the VAG 1551 scan tool display.

1J0 959 811A 03 Door CU HL0022 ->

- Press -> button.

Indicated on display (briefly):

Please wait

and then the right rear door control module identification is indicated on the VAG 1551 scan tool display.

1J0 959 812A 03 Door CU HR0022 ->

- Press -> button.

Indicated on display:

Rapid data transfer HELP
Select function XX