Engine Control Module: Testing and Inspection

Engine Control Module, Replacing

Removing

Special tools, testers and auxiliary items required

• Heat gun.

• locking pliers

• When the Engine Control Module (ECM) (J623) electrical harness connectors are disconnected, the adaptation values are erased and the DTC memory content remains intact.

Work procedure

Check the identification of the previous Engine Control Module (ECM) (J623) as follows:

- Connect the scan tool.

- Switch the ignition on.

- Using the scan tool, select "Vehicle information".

- Select " Calibration Identification" in vehicle information.

The electronic control module identification number will be displayed, e.g. 06A906032NA 4983

- Record the electronic control module identification number.

- End diagnosis and switch the ignition off.

Procedure

- Refer to the appropriate service manual.