4D

Onstar Control Module (673), 4D

To remove

1. Carry out actions before removing control module.
2. Remove the parcel shelf trim.





3. Remove the screws.





IMPORTANT: Take care when releasing the locking mechanism on the connector so as not to damage the connector. Pull the halves straight apart to avoid bending the pins. For further information regarding connectors, refer to Connectors, handling and inspection.

4. Unplug the connectors.
5. Lift out the control module.

To fit

1. Place the control module in the correct position.

IMPORTANT: Take care when plugging in the connector so as not to damage or press out the pins/sleeves in the connector. For further information regarding connectors, refer to Connectors, handling and inspection.

2. Plug in the connector.





3. Fit the screws.
4. Fit the parcel shelf trim.





5. Carry out Procedure after control module replacement.
6. Carry out reconfiguration of the OnStar system.