Engine Control Module: Service and Repair

Engine Control Module

Special tools, testers and auxiliary items required

• Pry Lever - Rmv Outside Mirror (80 - 200)

Removing

- Select replace engine control module under guided functions in the vehicle diagnosis tester if the engine control module is being replaced.

- Turn the ignition and remove the ignition key.

- Remove the windshield wiper arms.

The plenum chamber cover could be damaged.

• Coat the bond between the windshield and the plenum chamber cover with soapy water.

- Remove the seal - 1 - near the plenum chamber cover.





- Carefully remove the plenum chamber cover - 2 - starting upward starting at the edge of the window - arrows -.

- Lift the center of the plenum chamber cover out of the guides on the sides - 4 - and remove out the plenum chamber cover - 3 -.

- Release the retainers - arrows - and free up the left and right wiring harness on the plenum chamber bulkhead.





- Remove the electrical connector - 1 - from the bracket and disconnect it.

- Free up the wiring harness on the tower brace using the (80 - 200).

- Remove the bolts - 1, 2 and 3 - and - arrows - and remove the tower brace.





- Open the clamps - arrows - and remove the engine control module (J623) - 2 -.





• Ignore - 1, 3 and 4 -.

- Disengage the connectors from the engine control module (J623) and disconnect the connector.

- Remove the used engine control module and connect the new engine control module.

Installing

Install in reverse order of removal.

- Install the tower brace.

- Clip the cowl panel trim into the retainers on the windshield.

- Install the wiper arms.

The procedures to follow after connecting the new ECM are described in guided fault-finding and guided functions.