Operation CHARM: Car repair manuals for everyone.

Engine Control Module DTC Memory, Checking and Erasing






Engine Control Module DTC Memory, Checking and Erasing

Special tools, testers and auxiliary items required

Vehicle diagnostic tester

Perform the following:

- Connect the Vehicle Diagnosis Tester - 1 -.






- Connect the diagnostic cable connector - 2 - to the diagnostic connection inside the footwell on the driver side.

- Start the engine and let it run at idle.

Only if engine does not start:

- Turn on the ignition.

Selecting operating mode:

- Press the "OBD" button on the screen.

Selecting vehicle system:

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

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






A printout of available if needed. Press the "print" button.

Selecting diagnosis function:

- Press "02 - Check DTC memory" on the touch screen.

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

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

- Press the <- button.

- Press "05 - Erase DTC memory" on the touch screen.

- Press "06 - End output".

If the DTC memory was erased, the readiness code must be generated again => vehicle diagnostic tester "Guided Fault Finding".