Output Diagnostic Test Mode (DTM), through MY 09

Output Diagnostic Test Mode (DTM), through MY 09

Special tools, testers and auxiliary items required

• Vehicle Diagnostic Tester

• Power Outlet Tester (V.A.G 1537/A)

• Trailer Socket Tester (VAS 5800)

The wiring guides for the towing recognition control module (J345) to the trailer socket (U10) are checked with this test.

(V.A.G 1537/A) becomes too warm after a few minutes of use and switches off automatically. After a cooling off phase, (V.A.G 1537/A) functions normally again.

Procedure

- Connect the Vehicle diagnostic tester.

- Select Guided Fault Finding.

- Use the GO TO button to select the "function/component selection" and the following menu options one after the other:

• Body

• Body repair procedures

• 01 - On Board Diagnostic (OBD) capable systems

• Towing sensor

• Functions

• Towing recognition control module output diagnostic test