Initiating Program

Test Requirements
- Fuse OK per wiring diagram
See Electrical Wiring Diagrams, Troubleshooting & Component Locations.
- VAG1551 Scan Tool (ST) connected. VAG 1551 Scan Tool Connecting

NOTES:
- If the display remains blank, check the voltage supply of the VAG 1551 Scan Tool (ST) according to the wiring diagram.
- Additional operating instructions can printed out by pressing the HELP button.
- The -> button is used to advance through the program sequence.
- If an incorrect entry is made, press the -C- button to escape.
- In "Rapid data transfer" operating mode 1 the 'Automatic Test Sequence" function 00 can be carried out. This checks DTC memory of all vehicle control modules (with OBD capability) automatically

- Switch ignition on.
- Switch printer on by pressing PRINT button (indicator lamp in button lights up).
- 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 radio: 56
- Press buttons -5- and -6- to insert "Radio" address word 56.

Indicated on display
Rapid data transfer Q
56 - Radio

- Press -Q- button to confirm input.

NOTE: While the On Board Diagnostic (OBD) program is running "DIAG" will appear on the radio unit display

Indicated on display (after about 5 seconds):
4B0035186 Radio D01 ->
coding 00207 WSC 06812

- 4B0035186: Part No. for radio (See parts catalog microfiche).
- Radio: component designation
- D01: software version installed in radio
- Coding 00207: radio coding
- WSC 06812: dealership number

NOTE: Check coding against coding table. Radio Coding Table

- Press -> button.
- If display shows one of the following messages, carry out troubleshooting procedure as described in troubleshooting program for diagnostic wiring.
See Electrical Wiring Diagrams, Troubleshooting & Component Locations.

Rapid data transfer HELP
Control module does not answer

Rapid data transfer HELP
Error in communication link

Rapid data transfer HELP
K wire not switching to Ground

Rapid data transfer HELP
K wire not switching to B+

Indicated on display
Rapid data transfer HELP
Select function XX

- After the HELP button is pressed, a list of the possible functions are printed out.
- Press -> button to advance through program sequence.

On Board Diagnostic (OBD) Functions
The following functions are possible:
02 - Check DTC Memory. Check DTC Memory (Function 02)
03 - Output Diagnostic Test Mode (DTM). Output Diagnostic Test Mode (Function 03)
05 - Erase DTC Memory. Erasing DTC Memory (Function 05)
06 - End Output. Ending Output (Function 06)
07 - Code Control Module. Programming and Relearning
08 - Read Measuring Value Block. Read Measuring Value Block (Function 08)