WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
Place the data link connector into position.
Install the bolts/screws to the data link connector.
Tighten
Tighten the bolts/screws to 2 N.m (18 lb in).
Fig 1: Installing Bolts/Screws To Data Link Connector