Coding the Control Module

NOTES:
- During Engine Control Module (ECM) identification, a 5-digit code must always be displayed.
- Coding is carried out with the VAG 1551 scan tool, Reading Diagnostic Trouble Codes

- If coding that corresponds to the vehicle is not displayed or if the ECM has to be replaced, the ECM must be coded as follows:
- Connect VAG 1551.

Indicated on display

Rapid data transfer HELP
Select function XX

- Press buttons -0- and -7- to select "Code Control Module" function 07.

Indicated on display

Rapid data transfer
07-Code Control Module

- Press -Q- button to confirm input.

Indicated on display

Code control module
Enter code number XXXXX (032000)

- Enter code number for vehicle and press -Q- button to confirm firm input.

- Function is unknown or If the following is indicated on the display: cannot be carried out at the moment --> A non-released code number has been entered.

- ECM identification and entered coding (e.g. 01051) are shown.

8D0906266 2.81 V6/2V MP1 OBD2 D01
Coding 01051 WSC 06388

- Press button.

Indicated on display

Rapid data transfer HELP
Select function XX

- Press buttons -0- and -6- to select "End Output" function 06.

Indicated on display

Rapid data transfer Q
06- End Output

- Press -Q- button to confirm input.

Indicated on display

Rapid data transfer HELP
Insert address word XX

NOTES: The ECM uses the coding that is entered and displayed only after the ignition has been switched off once. Incorrect coding leads to:
- Driving performance problems (jerky shifting, rough load change, etc.)
- Increased fuel consumption
- Elevated exhaust gas values
- Decrease in transmission service life
- Storing of malfunctions that are not present in DTC memory
- Functions are not carried out (oxygen sensor control, triggering of the EVAP canister system, etc.).

Engine Control Module (EMC), Coding Variations:

Engine Control Module (ECM), coding variations

NOTE: The code number will be composed as shown in the following example:

- Audi A4 1
- Automatic 01V 5
- Front wheel drive 0
withouttraction control:
- Vehicle with EGR: 0 1
____________________________________________
- Code number: 0 1 0 5 1

NOTE: Vehicles with traction control (ATC) can be recognized by the ATC indicator light in the instrument cluster and/or by ABS control module identification using the ABS On Board Diagnostic (OBD) program.