GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Chevy Suburban - 4WD 🢒 Power and Signal Distribution 🢒 Data Communications 🢒 Data Communication Schematics
Figure 1:

Low Speed Bus - JX200 - 1 of 3
Object Number: 2074678 Size: FS
Figure 2:

Low Speed Bus - JX200 - 2 of 3
Object Number: 2074682 Size: FS
Figure 3:

Low Speed Bus - JX200 - 3 of 3 and JX300
Object Number: 2074685 Size: FP
Figure 4:

High Speed Bus - 1 of 2
Object Number: 2074688 Size: FS
Figure 5:

High Speed Bus - 2 of 2
Object Number: 2074692 Size: FS
Figure 6:

Serial Data Communication Enable and Wake-up Circuits
Object Number: 2074697 Size: FS
Figure 7:

High Speed Bus (HP2)
Object Number: 2074699 Size: FS
Figure 8:

Powertrain Expansion Bus (HP2)
Object Number: 2074701 Size: FS
Figure 9:

Serial Data Gateway (SDG) Module (HP2)
Object Number: 2074703 Size: FS