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

Module Power, Ground, Serial Data, and MIL


Object Number: 1576155  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Control Module References
Engine Data Sensors - 5-Volt and Low Reference
Engine Controls Schematic Icons
G104, G107, and G110
ETC/ECM, INJ 1, INJ 2, PCM 1, and SBA Fuses - Gas
B+ Bus Bar
AUX PWR, AUX PWR 2, DDM, ECC/TCM, ECM B, LBEC 2, LCKS, PCM B, PDM and TCM B Fuses
Ignition Switch - START, RUN, and ACC/RUN/START BUS BARS, IGN A and CRNK Fuses
IGN 0, RR WPR, SEO ACCY, TBC ACCY, TBC IGN 0, and WS WPR Fuses
G104, G107, and G110
G103 and G106 - Gas
Power, Ground, DLC, and Splice Pack SP205
Figure 2:

Engine Data Sensors - 5-Volt and Low Reference


Object Number: 1576156  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Control Module References
Engine Data Sensors - Pressure, Temperature, MAF, and VSS
Module Power, Ground, Serial Data, and MIL
Engine Controls Schematic Icons
Figure 3:

Engine Data Sensors - Pressure, Temperature, MAF, and VSS


Object Number: 1576158  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Control Module References
Engine Data Sensors - Oxygen Sensors
Engine Data Sensors - 5-Volt and Low Reference
Engine Controls Schematic Icons
Manual Transmission - NV3500
Pressure Controls, Temperature, and VSS
Gages, Vehicle Speed Signal, Engine Oil Pressure, and Fuel Level Sensors
ETC/ECM, INJ 1, INJ 2, PCM 1, and SBA Fuses - Gas
ETC/ECM, INJ 1, INJ 2, PCM 1, and SBA Fuses - Gas
G102, G103 and G108 - Diesel
Figure 4:

Engine Data Sensors - Oxygen Sensors


Object Number: 1576159  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Control Module References
Ignition Controls
Engine Data Sensors - Pressure, Temperature, MAF, and VSS
Engine Controls Schematic Icons
Ignition Switch - ACC/RUN and RUN/START BUS BARS and IGN B Fuse
G102, G103 and G108 - Diesel
Figure 5:

Ignition Controls


Object Number: 1576160  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Control Module References
Fuel Pump Controls and Fuel Injectors
Engine Data Sensors - Oxygen Sensors
Engine Controls Schematic Icons
Module Power, Ground, Serial Data, and MIL
ETC/ECM, INJ 1, INJ 2, PCM 1, and SBA Fuses - Gas
G100 and G102
Gages, Vehicle Speed Signal, Engine Oil Pressure, and Fuel Level Sensors
Engine Controls Schematic Icons
Figure 6:

Fuel Pump Controls and Fuel Injectors


Object Number: 1576161  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Control Module References
Fuel Controls - EVAP and Device Controls
Ignition Controls
Engine Controls Schematic Icons
ETC/ECM, INJ 1, INJ 2, PCM 1, and SBA Fuses - Gas
Module Power, Ground, Serial Data, and MIL
G104, G107, and G110
B+ Bus Bar
AUX PWR, AUX PWR 2, DDM, ECC/TCM, ECM B, LBEC 2, LCKS, PCM B, PDM and TCM B Fuses
Gages, Vehicle Speed Signal, Engine Oil Pressure, and Fuel Level Sensors
G104, G107, and G110
G104, G107, and G110
Figure 7:

Fuel Controls - EVAP and Device Controls


Object Number: 1576162  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Control Module References
Transmission and Controlled/Monitored Subsystem References
Fuel Pump Controls and Fuel Injectors
Engine Controls Schematic Icons
B+ Bus Bar
Module Power, Ground, Serial Data, and MIL
ETC/ECM, INJ 1, INJ 2, PCM 1, and SBA Fuses - Gas
Gages, Vehicle Speed Signal, Engine Oil Pressure, and Fuel Level Sensors
Figure 8:

Transmission and Controlled/Monitored Subsystem References


Object Number: 1576163  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Control Module References
Fuel Controls - EVAP and Device Controls
Engine Controls Schematic Icons
Shift Controls and Stop Lamp Switch
Pressure Controls, Temperature, and VSS
PNP Switch, 4WD Signal, Tow/Haul, Serial Data, and Indicator
Pressure Controls, Temperature, and VSS
Starting - Gas
Charging - 10 Series except HP2 - Gas
Transfer Case Control Schematics
Power, Ground, Serial Data, Indicator, and Stop Lamp Switch - 8600 GVW or less w/Rear Disc Brakes
4.3L
10 Series
A/C Compressor Control
A/C Compressor Controls
Power, Ground, Serial Data, and Transfer Case Encoder Motor
Transfer Case Control Schematics
Manual Transmission - NV3500
Gages, Vehicle Speed Signal, Engine Oil Pressure, and Fuel Level Sensors