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

Module Power, Ground, Serial Data, and MIL


Object Number: 1473175  Size: FS
Master Electrical Component List
Air Intake System Description
Body Control Module (BCM) Programming/RPO Configuration
Engine Data Sensors - 5-Volt and Low References
Engine Controls Schematic Icons
B+ Bus - Underhood Fuse Block
B+ Bus - Underhood Fuse Block
B+ Bus - Underhood Fuse Block
B+ Bus - Underhood Fuse Block
Data Link Connector (DLC) Schematics
Splice Pack SP105 and G105 - 1 of 2
Ignition Switch and IGN TRANS D Fuse
G100, G104, G102, G103, and G101
G100, G104, G102, G103, and G101
Figure 2:

Engine Data Sensors - 5-Volt and Low Reference


Object Number: 1473176  Size: FS
Master Electrical Component List
Air Intake System Description
Body Control Module (BCM) Programming/RPO Configuration
Engine Data Sensors - Electronic Throttle Controls, MAF, Pressure, and Temperature
Module Power, Ground, Serial Data, and MIL
Engine Controls Schematic Icons
Figure 3:

Engine Data Sensors - Electronic Throttle Controls, MAF, Pressure, and Temperature


Object Number: 1473177  Size: FS
Master Electrical Component List
Throttle Actuator Control (TAC) System Description
Body Control Module (BCM) Programming/RPO Configuration
Engine Data Sensors - Oxygen Sensors
Engine Data Sensors - 5-Volt and Low References
Engine Controls Schematic Icons
B+ Bus - Underhood Fuse Block
TCC Brake/Cruise Release Switch and Vehicle Speed Sensor
Manual Transmission Schematics
G100, G104, G102, G103, and G101
Figure 4:

Engine Data Sensors - Oxygen Sensors


Object Number: 1473179  Size: FS
Master Electrical Component List
Evaporative Emission Control System Description
Body Control Module (BCM) Programming/RPO Configuration
Ignition Controls - Sensors
Engine Data Sensors - Electronic Throttle Controls, MAF, Pressure, and Temperature
Engine Controls Schematic Icons
B+ Bus - Underhood Fuse Block
Figure 5:

Ignition Controls - Sensors


Object Number: 1473181  Size: FS
Master Electrical Component List
Camshaft Actuator System Description
Body Control Module (BCM) Programming/RPO Configuration
Ignition Controls - Ignition System
Engine Data Sensors - Oxygen Sensors
Engine Controls Schematic Icons
Engine Controls Schematic Icons
Engine Controls Schematic Icons
Figure 6:

Ignition Controls - Ignition System


Object Number: 1473184  Size: FS
Master Electrical Component List
Knock Sensor (KS) System Description
Body Control Module (BCM) Programming/RPO Configuration
Fuel Controls - Fuel Pump Controls
Ignition Controls - Sensors
Engine Controls Schematic Icons
Module Power, Ground, Serial Data, and MIL
RUN/CRANK Relay Bus - 2 of 3, ABS, BACKUP, and IGN Fuses
RUN/CRANK Relay Bus - 2 of 3, ABS, BACKUP, and IGN Fuses
G100, G104, G102, G103, and G101
G100, G104, G102, G103, and G101
Figure 7:

Fuel Controls - Fuel Pump Controls


Object Number: 1473185  Size: FS
Master Electrical Component List
Fuel System Description
Body Control Module (BCM) Programming/RPO Configuration
Fuel Controls - Fuel Injectors
Ignition Controls - Ignition System
Engine Controls Schematic Icons
B+ Bus - Underhood Fuse Block
B+ Bus - Underhood Fuse Block
Splice Pack SP105 and G105 - 1 of 2
Splice Pack SP105 and G105 - 2 of 2
Splice Pack SP105 and G105 - 1 of 2
Gages
Figure 8:

Fuel Controls - Fuel Injectors


Object Number: 1473186  Size: FS
Master Electrical Component List
Fuel System Description
Body Control Module (BCM) Programming/RPO Configuration
Fuel Controls - EVAP Controls
Fuel Controls - Fuel Pump Controls
Engine Controls Schematic Icons
Module Power, Ground, Serial Data, and MIL
Figure 9:

Fuel Controls - EVAP Controls


Object Number: 1473187  Size: FS
Master Electrical Component List
Fuel System Description
Body Control Module (BCM) Programming/RPO Configuration
Controlled/Monitored Subsystem and Transmission Reference
Fuel Controls - Fuel Injectors
Engine Controls Schematic Icons
B+ Bus - Underhood Fuse Block
RUN/CRANK Relay Bus - 3 of 3, ERLS, FRT AX, INJECTOR, and PCM I Fuses
Gages
Figure 10:

Controlled/Monitored Subsystem and Transmission References


Object Number: 1473188  Size: FS
Master Electrical Component List
Camshaft Actuator System Description
Body Control Module (BCM) Programming/RPO Configuration
Fuel Controls - EVAP Controls
Engine Controls Schematic Icons
Control Module
Starting and Charging - MA5
Starting System - M30
Charging System
Compressor Controls - C60
Cruise Control Schematics
Indicators
Stop Lamps and License Lamps
Transfer Case Encoder Motor
Switches and VSS
Transmission Controls