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 "Replacing Engine Control Module" guided function.

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

Removing

- Turn off the ignition.

- Remove the wiper arms and plenum chamber cover.

- Remove the plenum chamber bulkhead.

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






- Remove the shear bolts - arrows -.






- Slide a screwdriver between both locking plates - arrow -.






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

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






- Push the retainers in the - direction of the arrow - and disconnect the connector.






Installing

- Connect the connector to the ECM and push the retainers all the way in, in the - direction of the arrow -.






- Place the locking bracket - 1 - on the connectors and press it in, in the - direction of the arrow -.






- Install the bolts - 2 - all the way into the hole on the ECM housing.

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






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

- Mount the ECM into the retaining frame and push it in, in the - direction of the arrow - upward.






- Install the plenum chamber bulkhead.

- Install the plenum chamber cover and the wiper arms.