Engine Control Module, Coding

Code Control Module (scan tool function 07)

If vehicle-specific code is not displayed , or if the ECM has been replaced, the ECM must be coded as follows.

Special tools and equipment
VAG1551 or VAG1552 Scan Tool (ST) with VAG1551/3 adapter cable

Work sequence
- Connect VAG1551/VAG1552 Scan Tool (ST) and press buttons -0- and -1- to insert "Engine Electronics" address word 01 (ignition switched on). [1][2][3][4]Connecting VAG 1551 Scan Tool

Indicated on display

Rapid data transfer HELP
Select function XX

- Press buttons -0- and -7- to select "Code Control Module" function 07, and press -Q- button to confirm input.

Indicated on display

Code Control Module HELP
Input code number XXXXX (0-32000)

- Input applicable code number for vehicle, and press -Q- button to confirm input, ECM coding variations.

If indicated on display:

Function is unknown or ->
cannot be carried out at the moment

Incorrect code number has been entered.

Indicated on display (ECM identification and coding, e.g. 06151)

4D0907551H 2.8L V6/5V MOTR HS D02 ->
Coding 06151 WSC 00000

- Press -> button to advance through program sequence.
- Press buttons -0- and -6- to select "End Output" function 06, and press - Q- button to confirm input.
- Switch ignition off.

NOTE: The Motronic ECM -J220- only uses the code that has been entered after the ignition has been switched off once. Incorrect coding leads to:
- Performance problems (e.g. jerky shifting, abrupt load changes, etc.)
- Increased fuel consumption
- Elevated exhaust gas values
- Storage of non-existent malfunctions in DTC memory
- Control module functions will not be performed (e.g. oxygen sensor regulation, EVAP regulation)
- Traction control will not function on front-wheel-drive vehicles (ASR light comes on)
- Reduction in transmission service life

ECM coding variations





The code number is compiled as shown in the following example: