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

Cell 50: Power, Ground and Class 2 Serial Data Line


Object Number: 482060  Size: FS
Data Link Communications Components
Data Link Connector Description
Cell 50: UART Serial Data Line
Power Distribution Schematics
Power Distribution Schematics
Ground Distribution Schematics
Ground Distribution Schematics
Handling ESD Sensitive Parts Notice
Steering Assist Schematics
Figure 2:

Cell 50: UART Serial Data Line


Object Number: 482051  Size: FS
Data Link Communications Components
Data Link Connector Description
Cell 50: E and C Serial Data Line
Cell 50: Power, Ground and Class 2 Serial Data Line
Handling ESD Sensitive Parts Notice
SIR Handling Caution
Figure 3:

Cell 50: E and C Serial Data Line


Object Number: 482058  Size: FS
Data Link Communications Components
Data Link Connector Description
Cell 50: UART Serial Data Line
Handling ESD Sensitive Parts Notice
HVAC Connector End Views