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

DLC, Ground, MIL and Power


Object Number: 1783076  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
5-Volt and Low References
Underhood Fuse Block IBCM 1 Fuse, BCM AIRBAG (BATT), CLUSTER/THEFT, HVAC CTRL (BATT), IGN SENSOR and RADIO Fuses and Ignition Switch
Underhood Fuse Block A/C CLUTCH and PWR/TRN Relays, EMISSION 1, ETC, IGN MOD and IMTV/DOD Fuses
Underhood Fuse Block RUN/CRANK Relay, ABS, IGN 1, INJ, PCM IGN 1 and TRANS Fuses
Underhood Fuse Block B+
Underhood Fuse Block IBCM 1 Fuse, BCM AIRBAG (BATT), CLUSTER/THEFT, HVAC CTRL (BATT), IGN SENSOR and RADIO Fuses and Ignition Switch
Underhood Fuse Block IBCM 1 Fuse, BCM AIRBAG (BATT), CLUSTER/THEFT, HVAC CTRL (BATT), IGN SENSOR and RADIO Fuses and Ignition Switch
G103, G104, and G105
Power, Ground, High Speed GMLAN Serial Data
G109
Figure 2:

5-Volt and Low References


Object Number: 1783081  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
MAF, VSS and Extended Brake Travel Switch
DLC, Ground, MIL and Power
Figure 3:

MAF, VSS and Extended Brake Travel Switch


Object Number: 1783085  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Heated Oxygen Sensors
5-Volt and Low References
Underhood Fuse Block A/C CLUTCH and PWR/TRN Relays, EMISSION 1, ETC, IGN MOD and IMTV/DOD Fuses
Turn Signals and Stop Lamps
G103, G104, and G105
Figure 4:

Heated Oxygen Sensors


Object Number: 1783087  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Electronic Throttle Controls
MAF, VSS and Extended Brake Travel Switch
Underhood Fuse Block A/C CLUTCH and PWR/TRN Relays, EMISSION 1, ETC, IGN MOD and IMTV/DOD Fuses
Figure 5:

Electronic Throttle Controls


Object Number: 1783103  Size: FS
Master Electrical Component List
Throttle Actuator Control (TAC) System Description
Control Module References
Ignition Coils/Modules
Heated Oxygen Sensors
Figure 6:

Ignition Coils/Modules


Object Number: 1783117  Size: FS
Master Electrical Component List
Electronic Ignition (EI) System Description
Control Module References
Ignition Sensors
Electronic Throttle Controls
G110 (LE5)
Figure 7:

Ignition Sensors


Object Number: 1783133  Size: FS
Master Electrical Component List
Camshaft Actuator System Description
Control Module References
Fuel Injectors and Fuel Pump
Ignition Coils/Modules
Engine Controls Schematic Icons
Figure 8:

Fuel Injectors and Fuel Pump


Object Number: 1783146  Size: FS
Master Electrical Component List
Fuel System Description
Control Module References
EVAP Controls and FTP Sensor
Ignition Sensors
Underhood Fuse Block A/C CLUTCH and PWR/TRN Relays, EMISSION 1, ETC, IGN MOD and IMTV/DOD Fuses
G302
Underhood Fuse Block RBEC 2 Fuse and RUN RLY, BCM HVAC BLOWER HIGH and RUN Relays, HVAC BLOWER and HVAC CTRL (IGN) Fuses, Rear Fuse Block FUEL, PARK LPS and TRUNK Relays, DRV ST, EMISSION 2, FOLDING T
Indicators
G302
G301
Figure 9:

EVAP Controls and FTP Sensor


Object Number: 1783148  Size: FS
Master Electrical Component List
Evaporative Emission Control System Description
Control Module References
Controlled/Monitored Subsystem References
Fuel Injectors and Fuel Pump
Underhood Fuse Block A/C CLUTCH and PWR/TRN Relays, EMISSION 1, ETC, IGN MOD and IMTV/DOD Fuses
Underhood Fuse Block RBEC 2 Fuse and RUN RLY, BCM HVAC BLOWER HIGH and RUN Relays, HVAC BLOWER and HVAC CTRL (IGN) Fuses, Rear Fuse Block FUEL, PARK LPS and TRUNK Relays, DRV ST, EMISSION 2, FOLDING T
Figure 10:

Controlled/Monitored Subsystem References


Object Number: 1783151  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
EVAP Controls and FTP Sensor
Starting System - LE5/LY7
Charging System
Ambient Air Temperature Sensor and Compressor Controls
Ambient Air Temperature Sensor and Compressor Controls
Cooling Fans
Indicators
Internal Mode Switch (IMS)