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On Board Diagnostic (OBD), Initiating Program




On Board Diagnostic (OBD), Initiating Program

Special tools, test equipment and auxiliary items

- VAS5051 Diagnostic Operation Center (DOC) and/or VAG1551 Scan Tool (ST).
- VAG1551/3 adapter cable

Test requirements
- Fuse OK (check using wiring diagram)
- Connect VAS5051 Diagnostic Operation Center (DOC) or
- Connect VAG1551 scan tool. Vehicle Diagnostic, Testing and Information System VAS5051 or VAG1551 Scan Tool, Connecting and Selecting Functions


NOTE:
- If the VAG1551 display remains blank, check the power supply using the wiring diagram.
- Press the HELP button for additional operating instructions.
- Press the -> button to advance through the program sequence.
- Press the -C- button to clear an incorrect entry.
- In "Rapid data transfer" operating mode 1, "Automatic test sequence" address word 00 can be carried out. This will automatically check all vehicle control modules which have OBD capability.


- Switch ignition on.
- Switch printer on by pressing PRINT button (indicator light in button comes on).
- Press button -1- to select "Rapid data transfer" operating mode 1.

Indicated on display


Rapid data transfer HELP
Insert address word XX



Address word for headlight automatic vertical aim control: 55
- Press buttons -5- and -5- to insert address word 55.

Indicated on display


Rapid data transfer Q
55-H.lamp.vert.aim.ctrl.sys



- Press -Q- button to confirm input

Indicated on display (after approx. 5 seconds)


4B0907357 Vertical Aim Control D00 ->
Coding 00003 WSC 06812



- 460907357: automatic vertical headlight aim control system control module identification (See also ET-program)
- DOO: control module software version for headlight automatic vertical aim control
- Coding 00003: coding of headlight automatic vertical aim control control module
- WSC 06812: dealership number (example)

- Press -> button.

If the display shows one of the following messages, carry out troubleshooting procedures.


Rapid data transfer HELP
Control module does not answer



or


Rapid data transfer HELP
Error in communication link



or


Rapid data transfer HELP
K-wire not switching to ground



or


Rapid data transfer HELP
K-wire not switching to B+



Indicated on display


Rapid data transfer HELP
Select function XX



- Press HELP button to print out list of all possible functions.
- Press -> button to step through program sequence.

On Board Diagnostic (OBD) functions
The following functions are possible:
02 - Check DTC Memory.
03 - Output Diagnostic Test Mode.
04 - Basic Setting.
05 - Erase DTC Memory
06 - End Output
07 - Code Control Module.
08 - Read Measuring Value Block.