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

Module Power, Ground, and Serial Data and MIL


Object Number: 783401  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Five Volt Bus Bar
OBD II Symbol Description Notice
B+ Bus Bar
I/P Fuse Block TURN-B/U, IGN MDL, PCM and BCM/CLU Fuses
G110 and G111
Data Link Connector (DLC)
Figure 2:

Engine Data Sensors--5 Volt and Low Reference


Object Number: 788898  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Engine Data Sensors - Pressure and Temperature
Module Power, Ground, Serial Data and MIL
OBD II Symbol Description Notice
Figure 3:

Engine Data Sensors -- Pressure and Temperature


Object Number: 783404  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Engine Data Sensors - HO2S
Five Volt Bus Bar
OBD II Symbol Description Notice
A/C Switches and Sensor
Gauges
Figure 4:

Engine Data Sensors -- HO2S


Object Number: 783405  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Ignition Controls
Engine Data Sensors - Pressure and Temperature
OBD II Symbol Description Notice
I/P Fuse Block BCM, WIPER, HVAC, 02 HTR Fuses and PWR WDO Circuit Breaker
I/P Fuse Block ERLS Fuse
EVAP Controls and IAC
EVAP Controls and IAC
Figure 5:

Ignition Controls


Object Number: 783407  Size: FS
Master Electrical Component List
Electronic Ignition (EI) System Description
Fuel System
Engine Data Sensors - HO2S
OBD II Symbol Description Notice
I/P Fuse Block TURN-B/U, IGN MDL, PCM and BCM/CLU Fuses
G110 and G111
Figure 6:

Fuel Delivery


Object Number: 783409  Size: FS
Master Electrical Component List
Fuel System Description
EVAP Controls and IAC
Ignition Controls
OBD II Symbol Description Notice
Underhood Fuse Block IGN and ABS Fuses, I/P Fuse Block ABS, F/P-INJ, AIR BG and Cruise Fuses
G304 - 2 of 2
G110 and G111
Figure 7:

EVAP Controls and IAC


Object Number: 783411  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Controlled/Monitored Subsystem References (1 of 2)
Fuel System
OBD II Symbol Description Notice
I/P Fuse Block ERLS Fuse
I/P Fuse Block ERLS Fuse
I/P Fuse Block ERLS Fuse
Figure 8:

Controlled/Monitored Subsystem References (1 of 2)


Object Number: 783416  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Controlled/Monitored Subsystem References (2 of 2)
EVAP Controls and IAC
OBD II Symbol Description Notice
Manual Transmission
PNP Switch and TCC Release Signal
Solenoid Controls
TFP Switch and Speed Sensors
TFP Switch and Speed Sensors
TFP Switch and Speed Sensors
Figure 9:

Controlled/Monitored Subsystem References (2 of 2)


Object Number: 783418  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Controlled/Monitored Subsystem References (1 of 2)
OBD II Symbol Description Notice
2002 J Car Cruise Control Schematics (Power, Ground, and Controls)
Gauges
Blower Controls
Indicators and Switches
Engine Cooling