Replacing Engine Control Module (ECM)

Motronic Engine Control Module (ECM) -J220-, Replacing

Special tools, test equipment and auxiliary items
- VAG1551 scan tool with VAG1551/3B cable

Removing
- First print out control module identification and thereby previous control module coding as follows:
- Connect VAG1551 scan tool ((VAG1552). Switch ignition on and select Motronic Engine Control Module (ECM) -J220- with "Address word" 01. Connecting scan tool and selecting Motronic Engine Control Module (ECM) -J220-.

The control module identification and coding are indicated on the display, e.g.:


06A906032EM 1.8L 5VT NB AG4 G 3467 ->
Coding 00003 WSC 00000


- Print out control module identification by pressing scan tool print button.
- Press -> button.
- Press buttons -0- and -6- for function "End output" and confirm entry with -Q- button.

Indicated on display:


Rapid data transfer HELP
Select function XX


- Switch off ignition.
- Remove inner plenum chamber cover, left.







- Press retaining tab -arrow- to left and pull control module out.
- Release connector from control module and disconnect it.
- Remove control module.

Installing
- Install control module connector and lock.
- Place new control module into retaining frame.
- Check DTC Memory, if necessary, repair any malfunctions and then Erase DTC Memory, Checking and Erasing DTC Memory.
- Adapt new control module to immobilizer Repair Manual , Electrical Equipment On Board Diagnostic (OBD), Repair Group 01.
- Adapt new control module to Throttle Valve Control Module -J338-.
- On vehicles with cruise control system: Check whether this function has been enabled (activated). If "G" is not evident in control module identification, activate cruise control system.

Vehicles with automatic transmissions:
- Learning kick-down point
- Adapt control module for automatic transmission

Continued for all vehicles
- Perform idle check
- Generate readiness