GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Cell 50: Gasoline Engine


Object Number: 302442  Size: FS
Data Link Communications Components
Data Link Connector Circuit Description All engines
Cell 50: Cat© Diesel Engine
Handling ESD Sensitive Parts Notice
Data Link Communications Schematic Icons
Figure 2:

Cell 50: Cat© Diesel Engine


Object Number: 302446  Size: FS
Data Link Communications Components
Data Link Connector Circuit Description All engines
Cell 50: GM Diesel
Cell 50: Gasoline Engine
Handling ESD Sensitive Parts Notice
Data Link Communications Schematic Icons
Figure 3:

Cell 50: GM Diesel


Object Number: 302449  Size: FS
Data Link Communications Components
Data Link Connector Circuit Description All engines
Cell 50: Cat© Diesel Engine
Handling ESD Sensitive Parts Notice
Data Link Communications Schematic Icons