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

Data Link Connector


Object Number: 859438  Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Data Link Communication
Data Link Communication
SIR Caution for Zoning
Data Link Communication
G201, 1 of 2
G102, G104, G105, and G107
IGN E and PCM I Fuses
Figure 2:

Data Link Communication


Object Number: 859439  Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Data Link Connector
Data Link Connector