Operation CHARM: Car repair manuals for everyone.

Output Diagnostic Test Mode (Function 03)

- The Output Diagnostic Test Mode (DTM) 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:

NOTES:
- Output Diagnostic Test Mode (DTM) 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. Connecting VAG 1551 Scan Tool

Indicated on display (select function):

Rapid data transfer HELP
Select function XX


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

Indicated on display

Rapid data transfer Q
03 - Output Diagnostic Test Mode (DTM)


- Press -Q- button to confirm input.

Indicated on display

Output Diagnostic Test Mode (DTM) ->
Speaker

A short, loud tone emits
- Press -> button.

Indicated on display:

Output Diagnostic Test Mode (DTM) ->
Output Radio Display Instrument Cluster

- Press -> button.

Indicated on display:

Output Diagnostic Test Mode (DTM) ->
END

- Press -> button.

Indicated on display (select function):

Rapid data transfer HELP
Select function XX

- End output (function 06). Ending Output (Function 06)