Engine Control Module (ECM), Coding

Diesel Direct Fuel Injection (DFI) Engine Control Module (ECM) -J248-, Coding

Engine Control Module (ECM), coding
If appropriate code for vehicle is not displayed or if ECM has been replaced, code ECM as follows.

Special tools
- VAG1551/1552 Scan Tool using VAG1551/3 Adapter cable

Work sequence
- Connect VAG1551/1552 Scan Tool.
- Switch ON ignition but do not start engine.
- Press -0- and -1- buttons to select Address word 01: "Engine electronics"

Display will appear as shown (I.D. example only):


038906018M 1.9l R4 EDC 00AG 1813 ->
Coding 0001 WSC XXXXX


- Press -> button.

Display will appear as shown:


Rapid data transfer HELP
Select function XX


- Press -0- and -7- buttons to select Function 07: "Code control module".
- Press -Q- button to enter input.

Display will appear as shown:


Code control module Q
Input code number xxxxx (0-32000)


- Enter appropriate code number for this vehicle.
- Coding tables


Engine control module coding, m.y. 1998-1999







NOTE: The following code is valid for ECM version: 038 906 018 BD.







Engine control module coding, from m.y. 2000







- Press -Q- button to enter input.

Display will appear as shown (I.D. example only):


038906018M 1.9l R4 EDC 00AG 1813 ->
Coding 0001 WSC XXXXX


- Switch ignition OFF and then ON again.


NOTE: Entered coding is activated by switching ignition OFF and then ON again. If, after entering correct code, ignition is NOT switched OFF and ON again, malfunction:"Control Module incorrectly coded" will become stored in DTC memory and must be erased.


- Erase DTC memory.
- Set Readiness code.