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

Power, Ground, MIL, Communication


Object Number: 1963260  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
5-Volt and Low Reference Bussing
Figure 2:

5-Volt and Low Reference Bussing


Object Number: 1963263  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Engine Data Sensors - Pressure, Temperature, MAF/IAT
Power, Ground, MIL, Communication
Figure 3:

Engine Data Sensors - Pressure, Temperature, MAF/IAT


Object Number: 1963267  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Engine Data Sensors - HO2S
5-Volt and Low Reference Bussing
Figure 4:

Engine Data Sensors - HO2S


Object Number: 1963270  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Engine Data Sensors - APP, TAC
Engine Data Sensors - Pressure, Temperature, MAF/IAT
Figure 5:

Engine Data Sensors - APP, TAC


Object Number: 1963272  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Ignition Controls - Ignition System
Engine Data Sensors - HO2S
Figure 6:

Ignition Controls - Ignition System


Object Number: 1963274  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Ignition Controls - Sensors
Engine Data Sensors - APP, TAC
Figure 7:

Ignition Controls - Sensors


Object Number: 1963277  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Fuel Controls, Injectors
Ignition Controls - Ignition System
Figure 8:

Secondary Air Injection (AIR) System (NU6)


Object Number: 1963289  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Controlled/Monitored Subsystem Subsystem References
Figure 9:

Fuel Controls, Injectors


Object Number: 1963280  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
EVAP Controls
Ignition Controls - Sensors
Figure 10:

EVAP Controls


Object Number: 1963283  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Controlled/Monitored Subsystem Subsystem References
Fuel Controls, Injectors
Figure 11:

Controlled/Monitored Subsystem References


Object Number: 1963286  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Secondary Air Injection (AIR) System (NU6)
EVAP Controls