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

Module Power, Ground, Serial Data, and MIL


Object Number: 1576164  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
IGN 0, RR WPR, SEO ACCY, TBC ACCY, TBC IGN 0, and WS WPR Fuses
IGN 0, RR WPR, SEO ACCY, TBC ACCY, TBC IGN 0, and WS WPR Fuses
G104, G107, and G110
G103 and G106 - Gas
High Speed GMLAN (HP2)
Power, Ground, DLC, and Splice Pack SP205
Figure 2:

Engine Data Sensors - 5-Volt and Low References


Object Number: 1576165  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: 1576166  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Control Module References
Engine Data Sensors - Oxygen Sensors (w/o HP2)
Engine Data Sensors - 5-Volt and Low Reference
Engine Controls Schematic Icons
Manual Transmission - NV4500
Manual Transmission - NV3500
Pressure Controls, Temperature, and VSS
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
Module Power, Ground, Serial Data, and MIL
ETC/ECM, INJ 1, INJ 2, PCM 1, and SBA Fuses - Gas
G102, G103 and G108 - Diesel
Figure 4:

Engine Data Sensors - Oxygen Sensors (w/o HP2)


Object Number: 1576170  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Control Module References
Engine Data Sensors - Oxygen Sensors (HP2) - 1 of 2
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:

Engine Data Sensors - Oxygen Sensors (HP2) - 1 of 2


Object Number: 1576171  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Control Module References
Engine Data Sensors - Oxygen Sensors (HP2) - 2 of 2
Engine Data Sensors - Oxygen Sensors (w/o HP2)
Engine Controls Schematic Icons
B+ Bus Bar
COOL PMP, HYBRID O2A, HYBRID O2B, IGN B, and PWR MAINT Fuses
COOL PMP, HYBRID O2A, HYBRID O2B, IGN B, and PWR MAINT Fuses
Engine Data Sensors - Oxygen Sensors (HP2) - 2 of 2
Engine Data Sensors - Oxygen Sensors (HP2) - 2 of 2
Engine Data Sensors - Oxygen Sensors (HP2) - 2 of 2
Engine Data Sensors - Oxygen Sensors (HP2) - 2 of 2
Figure 6:

Engine Data Sensors - Oxygen Sensors (HP2) - 2 of 2


Object Number: 1576172  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Control Module References
Engine Data Sensors - Electronic Throttle Control
Engine Data Sensors - Oxygen Sensors (HP2) - 1 of 2
Engine Controls Schematic Icons
Engine Data Sensors - Oxygen Sensors (HP2) - 1 of 2
Engine Data Sensors - Oxygen Sensors (HP2) - 1 of 2
Engine Data Sensors - Oxygen Sensors (HP2) - 1 of 2
Engine Data Sensors - Oxygen Sensors (HP2) - 1 of 2
Figure 7:

Engine Data Sensors - Electronic Throttle Control


Object Number: 1576173  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Control Module References
Ignition Controls - Ignition System Coils 1, 3, 5, and 7
Engine Data Sensors - Oxygen Sensors (HP2) - 2 of 2
Engine Controls Schematic Icons
Module Power, Ground, Serial Data, and MIL
4.8L, 5.3L, 6.0L, and 8.1L
Stop Lamp Switch and Signals
G104, G107, and G110
Figure 8:

Ignition Controls - Ignition System Coils 1, 3, 5, and 7


Object Number: 1576174  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Control Module References
Ignition Controls - Ignition System Coils 2, 4, 6, and 8
Engine Data Sensors - Electronic Throttle Control
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
Figure 9:

Ignition Controls - Ignition System Coils 2, 4, 6, and 8


Object Number: 1576176  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Control Module References
Ignition Controls - Sensors
Ignition Controls - Ignition System Coils 1, 3, 5, and 7
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
Figure 10:

Ignition Controls - Sensors


Object Number: 1576177  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Control Module References
Fuel Controls - Fuel Pump Controls
Ignition Controls - Ignition System Coils 2, 4, 6, and 8
Engine Controls Schematic Icons
Gages, Vehicle Speed Signal, Engine Oil Pressure, and Fuel Level Sensors
Figure 11:

Fuel Controls - Fuel Pump Controls


Object Number: 1576178  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Control Module References
Fuel Controls - Fuel Injectors
Ignition Controls - Sensors
Engine Controls Schematic Icons
B+ Bus Bar
AUX PWR, AUX PWR 2, DDM, ECC/TCM, ECM B, LBEC 2, LCKS, PCM B, PDM and TCM B Fuses
G104, G107, and G110
Gages, Vehicle Speed Signal, Engine Oil Pressure, and Fuel Level Sensors
G104, G107, and G110
G104, G107, and G110
Figure 12:

Fuel Controls - Fuel Injectors


Object Number: 1576179  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Control Module References
Fuel Controls - EVAP Controls and FTP Sensor
Fuel Controls - Fuel Pump Controls
Engine Controls Schematic Icons
Module Power, Ground, Serial Data, and MIL
ETC/ECM, INJ 1, INJ 2, PCM 1, and SBA Fuses - Gas
Figure 13:

Fuel Controls - EVAP Controls and FTP Sensor


Object Number: 1576181  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Control Module References
Controlled/Monitored Subsystem References
Fuel Controls - Fuel Injectors
Engine Controls Schematic Icons
ETC/ECM, INJ 1, INJ 2, PCM 1, and SBA Fuses - Gas
Module Power, Ground, Serial Data, and MIL
B+ Bus Bar
Gages, Vehicle Speed Signal, Engine Oil Pressure, and Fuel Level Sensors
Figure 14:

Controlled/Monitored Subsystem References


Object Number: 1576182  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Control Module References
Transmission Control References
Fuel Controls - EVAP Controls and FTP Sensor
Engine Controls Schematic Icons
Starting - Gas
Starting - 1 of 2, and Engine Speed Signal
Charging - 10 Series except HP2 - Gas
Starting - 1 of 2, and Engine Speed Signal
Power, Ground, Serial Data, Indicator, and Stop Lamp Switch - 8600 GVW or less w/Rear Disc Brakes
A/C Compressor Controls
A/C Compressor Control
Transfer Case Control Schematics
Power, Ground, Serial Data, and Transfer Case Encoder Motor
Manual Transmission - NV4500
Manual Transmission - NV3500
Starting - 1 of 2, and Engine Speed Signal
Gages, Vehicle Speed Signal, Engine Oil Pressure, and Fuel Level Sensors
10 Series
Transfer Case Control Schematics
Gages, Vehicle Speed Signal, Engine Oil Pressure, and Fuel Level Sensors
Figure 15:

Transmission Control References


Object Number: 1576183  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Control Module References
Controlled/Monitored Subsystem References
Engine Controls Schematic Icons
Shift Controls and Stop Lamp Switch
Shift Controls and Stop Lamp Switch
Shift Controls and Stop Lamp Switch
Pressure Controls, Temperature, and VSS
Pressure Controls, Temperature, and VSS
PNP Switch, 4WD Signal, Tow/Haul, Serial Data, and Indicator
PNP Switch, 4WD Signal, Tow/Haul, Serial Data, and Indicator
Pressure Controls, Temperature, and VSS
Pressure Controls, Temperature, and VSS