Output Diagnostic Test Mode (DTM) (Function 03)

Output Diagnostic Test Mode (DTM), (Function 03)

The Output Diagnostic Test Mode is part of the electrical check.
Output DTM checks for a short circuit between the speaker wires.
Check the DTC memory after performing output DTM.

Output Diagnostic Test Mode (DTM), initiating


NOTE:
- Output Diagnostic Test Mode cannot be initiated, or will be interrupted if engine is running or vehicle is moving.
- Use the -C- button to exit the test sequence at any time.

- Connect VAG 1551 Scan Tool (ST), input address word 56 "Radio" and then press -> button, until "Select function XX" is shown in display.

Indicated on display (select function):


Rapid data transfer HELP
Select function XX


- Press buttons -0- and -3- to select "Output Diagnostic Test Mode" function 03.

Indicated on display


Rapid data transfer Q
03 - Output Diagnostic Test Mode


- Press -Q- button to confirm input.

Indicated on display


Output Diagnostic Test Mode ->
Speaker


Speakers are tested with a test current (a short, loud tone is heard).

If a speaker circuit is detected as faulty by the system, a DTC will be stored in DTC memory.

- Check DTC memory.
- If necessary repair wiring or speaker, erase DTC memory and repeat Output Diagnostic Test Mode.
- Press -> button.

Indicated on display:


Output Diagnostic Test Mode ->
Output Radio Display Instrument Cluster


- Press -> button.

Indicated on display:


Output Diagnostic Test Mode ->
END


- Press -> button.

Indicated on display (select function):


Rapid data transfer HELP
Select function XX


- End output (function 06).