Scan Tool Testing and Procedures

Engine Control Module DTC Memory, Checking and Erasing

Special tools, testers and auxiliary items required

• Vehicle Diagnostic Tester

• Diagnostic Cable (VAS 5051/1)

Procedure

- Connect vehicle diagnostic tester as follows:

- Connect the diagnostic cable connector to the Data Link Connector (DLC).





- Start the engine and run at idle speed.

Only when engine does not start:

- Turn on the ignition.

Selecting operating mode:

- Press button on display for "Vehicle On Board Diagnostic (OBD)".

Selecting vehicle system:

- Press the "01 - Engine electronics" button on the display to check the Engine Control Module (ECM).

Display will indicate control module identification and ECM coding.

Selecting diagnosis function:

- Press button "02 - Check DTC memory" on display.

- If no malfunction is stored in ECM, "0 DTC(s) detected" is displayed.

- If malfunctions are stored in the ECM, these are shown one below another on the display.

- Press the <- key.

- Press button "05 - Erase DTC memory" on display.

- Press function "06 - End output".