Engine Control Module, without Anti-Theft Immobilizer

Engine Control Module, without Anti-Theft Immobilizer

Special tools, testers and auxiliary items required

• Vehicle diagnosis, testing and information system (VAS 5051B)

• If the Engine Control Module (ECM) is to be replaced, connect the (VAS 5051B) and perform the "Guided Function, Replacing Engine Control Module".

Removing

- Turn off the ignition.

- Remove the wiper arms and plenum chamber cover.

- Remove plenum chamber bulkhead..

- Remove the bolts - 1 - and remove the cover plate - 2 -.





- Disengage the front harness connector - 1 - from the ECM and disconnect it.





- Pry up the locking mechanism - 2 - slightly.

- Push the ECM in the - direction of arrow - out of the retaining plate.

- Release the rear connector from the ECM and remove it.

Installing

- Connect the rear connector to the ECM and lock it into place.

- Slide the ECM on to retaining plate.

- Press the catch - 2 - against the ECM.





- Now connect the front harness connector to ECM and engage it.

- Install the plenum chamber bulkhead.

- Install the wiper arms and plenum chamber cover.

- If the ECM was replaced, connect the (VAS 5051B) and perform the "Guided Function, Replacing Engine Control Module ".

- Check the ECM Diagnostic Trouble Code (DTC) memory erase all DTC entries. Refer to "Guided Function".

• If the DTC memory was erased, generate a readiness code.

- Perform a test drive.

• Observe the safety precautions that apply to road tests. Refer to --> [ If special testing equipment is required during road test, note the following: ] Safety Precautions.

- Again, check the ECM DTC memory.