Operation CHARM: Car repair manuals for everyone.

Engine Control Module, With Anti-Theft Protection






Engine Control Module, with Anti-Theft Protection

• If the Engine Control Module (ECM) will be replaced, connect the vehicle diagnostic tester and perform the guided function "Replacing Engine Control Module".

• The threads on the shear bolts may have locking compound on them. Heat the shear bolts using a hot air gun (VAS 1978/14) so they are easier to remove. Do not to damage any wires, connectors or components nearby when doing this.

Removing

- Turn off the ignition.

- Remove the windshield wiper arm.

- Remove the plenum chamber bulkhead.

- Press the frame downward in the - direction of the arrow - and remove the ECM.






- Remove the shear bolts - arrows - with the pliers.






- Slide the screwdriver between both of the locking plates - arrow -.






- Carefully press the screwdriver in the - direction of the arrow - and at the same time bend the securing bracket - 1 - upward.

- Bend the locking bracket - 1 - in the - direction of the arrow - until it can be removed from the connectors.






- Push the locking mechanism for the connector in the - direction of the arrow - and remove the connector.






Installing

- Connect the connector to the ECM and push the locking mechanism all the way until the stop in the - direction of the arrow -.






- Place the securing bracket - 1 - onto the connector and press it in the - direction of the arrow -.






- Guide the bolts - 2 - all the way into the opening on the ECM until they stop.

- Secure the locking bracket to the ECM with new shear bolts- arrows -.






- Tighten the shear bolts evenly until the bolt heads shear off.

- Place the ECM into the frame and press the frame upward in the - direction of the arrow -.






- Install the plenum chamber bulkhead.

- Install the windshield wiper arm.