Initiating On Board Diagnosis (OBD)
On Board Diagnosis (OBD) For The Comfort System (vehicles With Power Windows), 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 according 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 or VAS 5051.
- The -> button serves to advance the program sequence.
- The PRINT button of V.A.G 1551 is used for switching on the printer (warning lamp in button lights up). Print via the print menu when using VAS 5051, if necessary.
- Connecting V.A.G 1551 or VAS 5051. Scan Tool, Connecting
- Switch on ignition.
- Press button -1- for "Rapid data transfer" mode.
- Switch on printer with Print button (warning lamp in button lights up) if using V.A.G 1551 or print via the print menu when using VAS 5051, if necessary.
Indicated on display:
Rapid data transfer HELP
Enter address word XX
Address word for the Comfort System (vehicles with power windows): 46
Indicated on display:
Rapid data transfer HELP
Enter address word XX
- Press buttons -4- and -6-.
Indicated on display after entering the address word 46:
Rapid data transfer Q
46 Comfort System (vehicles with power windows) central module
- Confirm entry with -Q- button.
and the following is indicated on display:
Indicated on display:
Rapid data transfer ->
Tester sends address word 46
Scan tool V.A.G 1551 displays the control module identification for the central control unit (Central CU) e.g.:
1C0959799F 6M CU Conv HLO 0004 ->
Coding 00257 WSC 12345
At this point the program can be advanced with the -C- button to the option "Rapid data transfer, select function".
- Press -> button.
Will appear briefly in display:
Please wait
and the following is indicated on display:
The control module identification for the drivers door control unit is displayed, e.g.:
1Y1959801 Door control unit DS KLO 0001 ->
- Press -> button
Will appear briefly in display:
Please wait
and the following is indicated on display:
The control unit identification for the front passengers door control module is displayed, e.g.:
1Y1959802A Door control unit FPS KLO 0001 ->
- Press -> button
Will appear briefly in display:
Please wait
and the following is indicated on display:
The control unit identification for the left rear door control module (in side part) is displayed , e.g.:
1Y0959811 Door control unit RL KLO 0001 ->
- Press -> key
Will appear briefly in display:
Please wait
and the following is indicated on display:
The control unit identification for the right rear door control module (in side part) is displayed , e.g.:
1Y0959812 Door control unit RR KLO 0001 ->
- Press -> button
Indicated on display:
Rapid data transfer HELP
Select function XX
List of selectable functions
01 - Checking control unit version
02 - Check DTC memory
03 - Output Diagnostic Test Mode (DTM)
05 - Erasing fault memory
06 - Ending output
07 - Code control unit
08 - Read measured value block
10 - Adaptation
NOTE:
- A list of possible functions is printed out after pressing the HELP button.
- Do not select further functions, which can be printed out after pressing the HELP button.
- After the functions have been completed the V.A.G 1551 returns to the following start position:
Indicated on display:
Rapid data transfer HELP
Select function XX