Output Diagnostic Test Mode (DTM), vehicles through 05.01

The components displayed in the Output Diagnostic Test Mode (DTM) can differ depending upon the equipment fitted to the vehicle. For example on vehicles without ATA there will be no step "1" as listed in the table below.

The Output Diagnostic Test Mode (DTM) activates the following components in the stated sequence:

Step	Display in tester	Reaction
1	Alarm horn (for anti-theft alarm)	Horn sounds continuously
2	Turn signal lights activation (for anti-theft alarm)	Activated continuously (lights up cont.)
3	Interior light, reading lights	Interior and reading lights are activated
4	Signal close sliding roof	Sliding roof closes1)
5	"Safe" LED driver's door	"Safe" LED lights up
6	Instrument illumination	Switch illumination in control module active
7	END	Information: End of regular final control test

1) When performing Output Diagnostic Test Mode (DTM) "Signal close sliding roof", the ignition and S-terminal must be inactive (no key in ignition/starter switch) and one of the front doors must be open.

Special tools, testers and auxiliary items

V.A.G 1551 scan tool or vehicle V.A.G 1552 System tester with cable V.A.G 1551/3
V.A.G 1594 Adapter set
V.A.G 1527 LED test light
Wiring diagram

Work sequence

Connecting scan tool. Refer to Scan tool, connecting . Initiating On Board Diagnostic (OBD). Refer to Convenience system, initiating On Board Diagnostic (OBD) .

Indicated on display:

Rapid data transfer HELP
Select function XX

Operate scan tool taking into account the information on the display:
Input 03 for "Output Diagnostic Test Mode (DTM)" function.
Switch off ignition and remove ignition key from ignition lock.

Indicated on display:

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

Confirm entry with the -Q- button.

Indicated on display:

Final Control Diagnosis →

Perform Output Diagnostic Test Mode (DTM) by pressing button for individual tests: See table in Output Diagnostic Test Mode (DTM), vehicles from 06.01 on .

Output Diagnostic Test Mode (DTM) can be terminated by pressing the -C- button.

Press → button.

If a component does not function:

Continue Output Diagnostic Test Mode (DTM) to the end.