GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 HUMMER 🢒 2009 🢒 H2 🢒 Power and Signal Distribution 🢒 Data Communications 🢒 Engine Controls Schematics
Figure 1:

Module Power, Ground and Serial Data References
Object Number: 2097180 Size: FS
Figure 2:

5-Volt and Low Reference
Object Number: 2097181 Size: FS
Figure 3:

Engine Data Sensors - Pressure and Temperature
Object Number: 2097182 Size: FS
Figure 4:

Engine Data Sensors - Heated Oxygen Sensors
Object Number: 2097183 Size: FS
Figure 5:

Engine Data Sensors - Throttle Controls
Object Number: 2097184 Size: FS
Figure 6:

Ignition Controls - Ignition System Coils 1, 3, 5 and 7
Object Number: 2097185 Size: FS
Figure 7:

Ignition Controls - Ignition System Coils 2, 4, 6 and 8
Object Number: 2097186 Size: FS
Figure 8:

Ignition Controls - Sensors
Object Number: 2097187 Size: FS
Figure 9:

Fuel Pump Controls
Object Number: 2097188 Size: FS
Figure 10:

Fuel Controls - Fuel Injectors
Object Number: 2097189 Size: FS
Figure 11:

Fuel Controls - EVAP Controls
Object Number: 2097190 Size: FS
Figure 12:

Controlled/Monitored Subsystem References
Object Number: 2097191 Size: FS