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

Module Power, Ground, Serial Data, and MIL


Object Number: 1840275  Size: FS
Master Electrical Component List
Control Module References
Engine Data Sensors - 5-Volt and Low Reference
Batteries - LG4/LG5 and B+ Bus
Ignition Switch - OFF/RUN/START, RUN/START, and START Busses
ENGINE and PCM-1 Fuses/Circuit Breakers
G100 - LG5
Data Link Connector Power and Ground, 2 of 2
J1939 Serial Data, 2 of 2 - L18 w/JE4, LG4, LG5
Instrument Panel Cluster - 1 of 2
AIRBAG, GAUGES, LT REAR TURN/STOP, and RT REAR TURN/STOP Fuses/Circuit Breakers
Figure 2:

Engine Data Sensors - 5-Volt and Low Reference


Object Number: 1840284  Size: FS
Master Electrical Component List
Control Module References
Engine Data Sensors - Pressure and Temperature
Modular Power, Ground, Serial Data, and MIL
Ground
Figure 3:

Engine Data Sensors - Pressure and Temperature


Object Number: 1840291  Size: FS
Master Electrical Component List
Control Module References
Engine Data Sensors - Injection Timing Controls
Engine Data Sensors - 5-Volt and Low Reference
Instrument Panel Cluster - 2 of 2
G112, G113, G203 - 4 of 4, G204, G205, and G400
Figure 4:

Engine Data Sensors - Injection Timing Controls


Object Number: 1840293  Size: FS
Master Electrical Component List
Control Module References
Device Controls - Intake Air (IA) Heater
Engine Data Sensors - Pressure and Temperature
Ground
Ground
Engine Controls Schematic Icons
2007 MD-560C Manual Transmission Schematics
Engine Controls Schematic Icons
Figure 5:

Device Controls - Intake Air (IA) Heater


Object Number: 1840297  Size: FS
Master Electrical Component List
Control Module References
Fuel Controls - Fuel Injectors
Engine Data Sensors - Injection Timing Controls
Modular Power, Ground, Serial Data, and MIL
ENG-2 and ENG-3 Fuses - LG5/LLY
Figure 6:

Fuel Controls - Fuel Injectors


Object Number: 1840302  Size: FS
Master Electrical Component List
Control Module References
Ground
Device Controls - Intake Air (IA) Heater
Fuel Gage
Figure 7:

Ground


Object Number: 1840307  Size: FS
Master Electrical Component List
Control Module References
PTO
Fuel Controls - Fuel Injectors
Engine Data Sensors - Injection Timing Controls
Engine Data Sensors - Injection Timing Controls
Engine Cooling Schematics
PTO
PTO
Controlled/Monitored Subsystem Reference
Figure 8:

PTO


Object Number: 1840311  Size: FS
Master Electrical Component List
Control Module References
Controlled/Monitored Subsystem Reference
Ground
Ground
HPZ with Automatic Transmission
Ground
ENG-1 and ENG-4 Fuses - LG4/LG5
Figure 9:

Controlled/Monitored Subsystem Reference


Object Number: 1840315  Size: FS
Master Electrical Component List
Control Module References
PTO
Instrument Panel Cluster - 2 of 2
Cruise Control Schematics - LG5
G101 - 2 of 2
Engine Cooling Schematics
Ground
w/LG5
A/C Compressor Controls - LG4/LG5
2007 MD-560C Manual Transmission Schematics
2007 MD Charging System - LG4/LG5
Instrument Panel Cluster - 2 of 2
BRK Fuse/Circuit Breaker
Stop Lamp Switch