GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 TrailBlazer - 4WD 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Data Communication Schematics
Figure 1:

Power, Ground, and Data Link Connector
Object Number: 2081869 Size: FS
Master Electrical Component List
Figure 2:

SP205
Object Number: 2081895 Size: FS
Master Electrical Component List
Figure 3:

SP306
Object Number: 2081902 Size: FS
Master Electrical Component List