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

Module Power, Ground, and Serial Data
Object Number: 2064707 Size: FS
Figure 2:

5-Volt and Low Reference
Object Number: 2064709 Size: FS
Figure 3:

Engine Data Sensors - Pressure and Temperature
Object Number: 2064711 Size: FS
Figure 4:

Engine Data Sensors - Heated Oxygen Sensors
Object Number: 2064713 Size: FS
Figure 5:

Engine Data Sensors - Throttle Controls
Object Number: 2064715 Size: FS
Figure 6:

Ignition Controls - Ignition Control Module
Object Number: 2064718 Size: FS
Figure 7:

Ignition Controls - Sensors
Object Number: 2064720 Size: FS
Figure 8:

Fuel Pump Controls
Object Number: 2064724 Size: FS
Figure 9:

Fuel Controls - Fuel Injectors
Object Number: 2064726 Size: FS
Figure 10:

Fuel Controls - EVAP Controls
Object Number: 2064729 Size: FS
Figure 11:

Controlled/Monitored Subsystem References
Object Number: 2064732 Size: FS