Engine Control Module DTC Memory, Checking and Erasing

Engine Control Module DTC Memory, Checking and Erasing

Special tools, testers and auxiliary items required

• Vehicle diagnosis, testing and information system (VAS 5051 B), vehicle diagnosis and service system (VAS 5052) or (VAS 5053)

Connect the (VAS 5051) or the (VAS 5052) as follows:





- Connect the diagnostic cable - 2 - electrical connector to the Data Link Connector (DLC) in the driver's footwell.

- Start the engine and run at idle speed.

Only if engine does not start:

- Switch the on ignition.

Selecting Operating Mode

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

Selecting Vehicle system

- Press the button "01 - Engine electronics" on the display.

The control module identification with coding - 2 - as well as Vehicle Identification Number (VIN) in the center area and identification of antitheft immobilizer appear on the display.





• A printout is available. Press the "print" button if required.

Selecting Diagnosis Function

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

- If no malfunction is stored in the Engine Control Module (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 the button "05 - Erase DTC memory" on the display.

- Press the function "06 - End output".

• If the Diagnostic Trouble Code (DTC) memory was erased, generate a readiness code. Refer to "Guided Function".