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

Module Power, Ground, Serial Data, and MIL


Object Number: 1470684  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Engine Data Sensors - 5-volt Reference
Engine Controls Schematic Icons
Underhood Fuse Block Cooling Fan Fuses/Relays, MAIN Relay, ECM and TOS Fuses
Underhood Fuse Block B+ Bus - 2 of 2
Underhood Fuse Block B+ Bus - 2 of 2
Underhood Fuse Block B+ Bus - 2 of 2
Underhood Fuse Block B+ Bus - 2 of 2
Underhood Fuse Block B+ Bus - 2 of 2
Underhood Fuse Block DIM/ALDL, VOLT CHECK, FLASHER, CCP, EGM/TCM and ABS Fuses
Ignition Switch - 2 of 2
Class 2 Serial Data Bus - LHD - 2 of 2
Class 2 Serial Data Bus - LHD - 1 of 2
Underhood Fuse Block DIM/ALDL, VOLT CHECK, FLASHER, CCP, EGM/TCM and ABS Fuses
Engine Controls Schematic Icons
G130, G131, G132 and G133 (LY7)
Power, Ground, GMLAN Bus
G104 - 1 of 2
Figure 2:

Engine Data Sensors - 5-Volt Reference


Object Number: 1470689  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Engine Data Sensors - Low Reference
Module Power, Ground, Serial Data, and MIL
Engine Controls Schematic Icons
Figure 3:

Engine Data Sensors - Low Reference


Object Number: 1470697  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Engine Data Sensors - Pressure, Temperature, and MAF
Engine Data Sensors - 5-volt Reference
Engine Controls Schematic Icons
Figure 4:

Engine Data Sensors - Pressure, Temperature, and MAF


Object Number: 1470693  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Engine Data Sensors - Oxygen Sensors
Engine Data Sensors - Low Reference
Engine Controls Schematic Icons
Underhood Fuse Block B+ Bus - 2 of 2
Underhood Fuse Block B+ Bus - 2 of 2
G104 - 1 of 2
Underhood Fuse Block B+ Bus - 2 of 2
Engine Data Sensors - Low Reference
Engine Data Sensors - 5-volt Reference
Engine Data Sensors - Low Reference
G104 - 1 of 2
Figure 5:

Engine Data Sensors - Oxygen Sensors


Object Number: 1470698  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Engine Data Sensors - Throttle Actuator Controls
Engine Data Sensors - Pressure, Temperature, and MAF
Engine Controls Schematic Icons
Module Power, Ground, Serial Data, and MIL
Underhood Fuse Block B+ Bus - 2 of 2
Underhood Fuse Block B+ Bus - 2 of 2
Underhood Fuse Block PRE 02/CAM Fuse
Engine Controls Schematic Icons
Engine Controls Schematic Icons
Engine Controls Schematic Icons
Engine Controls Schematic Icons
Figure 6:

Engine Data Sensors - Throttle Actuator Controls


Object Number: 1470699  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Ignition Controls - Bank 1 Ignition Coils
Engine Data Sensors - Oxygen Sensors
Engine Controls Schematic Icons
Engine Controls Schematic Icons
Figure 7:

Ignition Controls - Bank 1 Ignition Coils


Object Number: 1470700  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Ignition Controls - Bank 2 Ignition Coils
Engine Data Sensors - Throttle Actuator Controls
Engine Controls Schematic Icons
Underhood Fuse Block B+ Bus - 2 of 2
Underhood Fuse Block ODD INJ/COIL Fuse
Underhood Fuse Block ODD INJ/COIL Fuse
G130, G131, G132 and G133 (LY7)
Figure 8:

Ignition Controls - Bank 2 Ignition Coils


Object Number: 1470701  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Ignition Controls - CMP Sensors and Solenoids
Ignition Controls - Bank 1 Ignition Coils
Engine Controls Schematic Icons
Underhood Fuse Block B+ Bus - 2 of 2
Underhood Fuse Block EVEN INJ/COIL Fuse
Underhood Fuse Block EVEN INJ/COIL Fuse
G130, G131, G132 and G133 (LY7)
Figure 9:

Ignition Controls - CMP Sensors and Solenoids


Object Number: 1470702  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Ignition Controls - CKP and Knock Sensors
Ignition Controls - Bank 2 Ignition Coils
Engine Controls Schematic Icons
Underhood Fuse Block B+ Bus - 2 of 2
Underhood Fuse Block PRE 02/CAM Fuse
Underhood Fuse Block PRE 02/CAM Fuse
Engine Data Sensors - Pressure, Temperature, and MAF
Figure 10:

Ignition Controls - CKP and Knock Sensors


Object Number: 1470703  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Fuel Controls - Fuel Pump and Injectors
Ignition Controls - CMP Sensors and Solenoids
Engine Controls Schematic Icons
Engine Controls Schematic Icons
Engine Controls Schematic Icons
Figure 11:

Fuel Controls - Fuel Pump and Injectors


Object Number: 1470704  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Fuel Controls - EVAP Controls and IMRC Solenoid
Ignition Controls - CKP and Knock Sensors
Engine Controls Schematic Icons
Underhood Fuse Block B+ Bus - 2 of 2
Underhood Fuse Block ODD INJ/COIL Fuse
Underhood Fuse Block B+ Bus - 2 of 2
Right Rear Fuse Block B+ Bus
G401
Gages - 2.8L/3.6L (LP1/LY7)
Figure 12:

Fuel Controls - EVAP Controls and IMRC Solenoid


Object Number: 1470705  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Controlled/Monitored Subsystem References
Fuel Controls - Fuel Pump and Injectors
Engine Controls Schematic Icons
Underhood Fuse Block B+ Bus - 2 of 2
Underhood Fuse Block B+ Bus - 2 of 2
Underhood Fuse Block B+ Bus - 2 of 2
Right Rear Fuse Block B+ Bus
Underhood Fuse Block PRE 02/CAM Fuse
Engine Data Sensors - Low Reference
Engine Data Sensors - 5-volt Reference
Engine Data Sensors - Low Reference
Figure 13:

Controlled/Monitored Subsystem References


Object Number: 1470706  Size: FS
Master Electrical Component List
Engine Control Module Description
Control Module References
Fuel Controls - EVAP Controls and IMRC Solenoid
Engine Controls Schematic Icons
Starting System - 2.8L/3.6L (LP1/LY7)
Power, Ground, Serial Data and DIC
Cooling Fans 2.8L/3.6L (LP1/LY7)
Cruise Control System - 2.8L/3.6L (LP1/LY7)
Engine OIl Pressure (EOP) Sensor, Engine Oil Level/Temperature Sensor, TFT and Indicator
A/C Compressor Controls 2.8L/3.6L (LP1/LY7)
BPP Sensor, Switches and Indicators - 2.8L/3.6L (LP1/LY7)
Power, Ground, Serial Data, TCM and Internal Mode Switch (IM5)