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

Module Power, Ground, Serial Data and MIL (LY7)


Object Number: 2079745  Size: FS
Figure 2:

Engine Data Sensors - 5-Volt 1 and Low Reference (LY7)


Object Number: 2079747  Size: FS
Module Power, Ground, Serial Data and MIL
Figure 3:

Engine Data Sensors - 5-Volt 2 and Low Reference (LY7)


Object Number: 2079749  Size: FS
Figure 4:

Engine Data Sensors - Pressure, Temperature (LY7)


Object Number: 2079756  Size: FS
Figure 5:

Engine Data Sensors - Heated Oxygen Sensors (HO2S) (LY7)


Object Number: 2079762  Size: FS
Figure 6:

Engine Data Sensors - Accelerator Pedal Position (APP) and Throttle Controls (LY7)


Object Number: 2079766  Size: FS
Figure 7:

Ignition Controls - Ignition System Coils Bank 1 (LY7)


Object Number: 2079770  Size: FS
Figure 8:

Ignition Controls - Ignition System Coils Bank 2 (LY7)


Object Number: 2079773  Size: FS
Figure 9:

Ignition Controls - Crankshaft Position (CKP) and Knock (KS) Sensors (LY7)


Object Number: 2079777  Size: FS
Figure 10:

Ignition Controls - Camshaft Position (CMP) Sensors and Actuator Solenoids (LY7)


Object Number: 2079781  Size: FS
Figure 11:

Fuel Controls - Fuel Injectors (LY7)


Object Number: 2079786  Size: FS
Figure 12:

Fuel Controls - Fuel Pump Controls (LY7)


Object Number: 2079791  Size: FS
Figure 13:

Fuel Controls - Evaporative Emissions (EVAP) Controls (LY7)


Object Number: 2079794  Size: FS
Figure 14:

Controlled/Monitored Subsystem References (LY7)


Object Number: 2079797  Size: FS