Engine Control Module: Testing and Inspection

Engine Control Module DTC Memory, Checking and Erasing

Special tools, testers and auxiliary items required

• Vehicle Diagnostic Tester

Connect the vehicle diagnostic tester as follows:






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

- Start the engine and run at idle speed.

Only if the engine does not start:

- Turn on the ignition.

Selecting the Operating Mode:

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

Select the 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 the anti-theft immobilizer appear on the display.






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

Select the Diagnostic 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 <- button.

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

- Press function "06 - End output".

• If the DTC memory was erased, the readiness code must be generated again. Refer to "Guided Fault Finding" in the vehicle diagnostic tester.