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

Ground, Power, MIL, Serial Data


Object Number: 1346278  Size: FS
Master Electrical Component List
Engine Data Sensors - Pressure and Temperature
Fuse Block - Underhood ENGINE MAIN, EMS 1, EMS 2, HEATING MAT Fuses and MAIN Relay (Sirius)
Fuse Block - Underhood ENGINE MAIN, EMS 1, EMS 2, HEATING MAT Fuses and MAIN Relay (Sirius)
Fuse Block - Underhood ENGINE MAIN, EMS 1, EMS 2, HEATING MAT Fuses and MAIN Relay (Sirius)
Fuse Block - Underhood ENGINE MAIN, EMS 1, EMS 2, HEATING MAT Fuses and MAIN Relay (Sirius)
Fuse Block - Underhood ENGINE MAIN, EMS 1, EMS 2, HEATING MAT Fuses and MAIN Relay (Sirius)
Fuse Block - Underhood ENGINE MAIN, EMS 1, EMS 2, HEATING MAT Fuses and MAIN Relay (Sirius)
LHD
Figure 2:

Engine Data Sensors - Pressure and Temperature


Object Number: 1346280  Size: FS
Master Electrical Component List
Engine Data Sensors - Oxygen Sensors
Ground, Power, MIL, Serial Data
Vehicle Speed Sensor
Figure 3:

Engine Data Sensors - Oxygen Sensors


Object Number: 1346282  Size: FS
Master Electrical Component List
Ignition Controls - Ignition System
Engine Data Sensors - Pressure and Temperature
Fuse Block - Underhood B+ Bus, 1 of 2
Fuse Block - Underhood B+ Bus, 1 of 2
Figure 4:

Ignition Controls - Ignition System


Object Number: 1346286  Size: FS
Master Electrical Component List
Ignition Controls - Sensors and Rough Road Wheel Speed Sensor
Engine Data Sensors - Oxygen Sensors
Fuse Block - Underhood ENGINE MAIN, EMS 1, EMS 2, HEATING MAT Fuses and MAIN Relay (Sirius)
Power and Ground (LHD)
Fuse Block - Underhood ENGINE MAIN, EMS 1, EMS 2, HEATING MAT Fuses and MAIN Relay (Sirius)
G103, G107
Figure 5:

Ignition Controls - Sensors and Rough Road Wheel Speed Sensor


Object Number: 1503233  Size: FS
Master Electrical Component List
Electronic Throttle Controls
Ignition Controls - Ignition System
Fuse Block - Underhood ENGINE MAIN, EMS 1, EMS 2, HEATING MAT Fuses and MAIN Relay (Sirius)
Fuse Block - Underhood ENGINE MAIN, EMS 1, EMS 2, HEATING MAT Fuses and MAIN Relay (Sirius)
Fuse Block - Underhood ENGINE MAIN, EMS 1, EMS 2, HEATING MAT Fuses and MAIN Relay (Sirius)
Figure 6:

Electronic Throttle Controls


Object Number: 1503247  Size: FS
Master Electrical Component List
Fuel Pump Controls and Fuel Injectors
Ignition Controls - Sensors and Rough Road Wheel Speed Sensor
Figure 7:

Fuel Controls - Fuel Pump Controls and Fuel Injectors


Object Number: 1503248  Size: FS
Master Electrical Component List
Device Controls
Electronic Throttle Controls
Fuse Block - Underhood ABS, ECM, SIREN Fuses
Fuse Block - Underhood ENGINE MAIN, EMS 1, EMS 2, HEATING MAT Fuses and MAIN Relay (Sirius)
Fuse Block - Underhood ABS, ECM, SIREN Fuses
Fuse Block - Underhood ENGINE MAIN, EMS 1, EMS 2, HEATING MAT Fuses and MAIN Relay (Sirius)
Fuse Block - Underhood ENGINE MAIN, EMS 1, EMS 2, HEATING MAT Fuses and MAIN Relay (Sirius)
Power and Ground (LHD)
G301
Figure 8:

Device Controls


Object Number: 1503249  Size: FS
Master Electrical Component List
Controlled/Monitored Subsystem References
Fuel Pump Controls and Fuel Injectors
Fuse Block - Underhood ENGINE MAIN, EMS 1, EMS 2, HEATING MAT Fuses and MAIN Relay (Sirius)
Fuse Block - Underhood ENGINE MAIN, EMS 1, EMS 2, HEATING MAT Fuses and MAIN Relay (Sirius)
Fuse Block - Underhood ENGINE MAIN, EMS 1, EMS 2, HEATING MAT Fuses and MAIN Relay (Sirius)
Fuse Block - Underhood ENGINE MAIN, EMS 1, EMS 2, HEATING MAT Fuses and MAIN Relay (Sirius)
G105 (Sirius)
Figure 9:

Controlled/Monitored Subsystem References


Object Number: 1503250  Size: FS
Master Electrical Component List
Device Controls
Power and Ground (LHD)
Single Fan (Sirius D4)
Compressor Controls (Sirius D4)