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

Power, Ground, MIL and Serial Data


Object Number: 805797  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Engine Data Sensors-5 Volt and Low Reference
OBD II Symbol Description Notice
Power Distribution Schematics (IGN 1)
Power Distribution Schematics (IGN 1)
Fuse Block Underhood Power Bussing (Page 1 of 2)
PCM, BCM, Cluster, Turn, SDM
G100, G111, and G113
Data Link Connector (DLC)
Figure 2:

Engine Data Sensors -- 5 Volt and Low Reference


Object Number: 805798  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Engine Data Sensors
Power,Ground,DLC,and MIL
OBD II Symbol Description Notice
Figure 3:

Engine Data Sensors -- Pressure and Temperature


Object Number: 805800  Size: FS
Master Electrical Component List
Powertrain Control Module Description
Engine Data Sensors-MAF,VSS
Engine Data Sensors-5 Volt and Low Reference
OBD II Symbol Description Notice
Fuse Block Underhood Power Bussing (Page 1 of 2)
Stop, EVAP, MAF
Figure 4:

Engine Data Sensors - MAF, VSS


Object Number: 812236  Size: FS
Master Electrical Component List
Powertrain Control Module Description
HO2S Sensors
Engine Data Sensors
OBD II Symbol Description Notice
Fuse Block Underhood Power Bussing (Page 1 of 2)
Stop, EVAP, MAF
G100, G111, and G113
G100, G111, and G113
Gauges
Fluid Pressure Manual Valve Position Switch and ISS Sensor
Engine Controls Schematic Icons
Figure 5:

Engine Data Sensors -- HO2S


Object Number: 805801  Size: FS
Master Electrical Component List
Powertrain Control Module Description
CMP,CKP,and KS Sensors
Engine Data Sensors-MAF,VSS
OBD II Symbol Description Notice
Fuse Block Underhood Power Bussing (Page 1 of 2)
G113
G100, G111, and G113
Figure 6:

Ignition Controls


Object Number: 805927  Size: FS
Master Electrical Component List
Electronic Ignition (EI) System Description
Fuel Pump Controls
HO2S Sensors
OBD II Symbol Description Notice
Fuse Block Underhood Power Bussing (Page 1 of 2)
Figure 7:

Fuel Pump Controls


Object Number: 805929  Size: FS
Master Electrical Component List
Fuel System Description
Fuel Injectors
CMP,CKP,and KS Sensors
OBD II Symbol Description Notice
Fuse Block Underhood Power Bussing (Page 1 of 2)
G100, G111, and G113
G402 (Page 1 of 2)
Gauges
G100, G111, and G113
Figure 8:

Fuel Injectors


Object Number: 805933  Size: FS
Master Electrical Component List
Fuel System Description
Fuel Pump Control, FTP
Fuel Pump Controls
OBD II Symbol Description Notice
Fuse Block Underhood Power Bussing (Page 1 of 2)
Figure 9:

Fuel Controls -- EVAP and FTP


Object Number: 789742  Size: FS
Master Electrical Component List
Evaporative Emission Control System Description
IAC Control
Fuel Injectors
OBD II Symbol Description Notice
Fuse Block Underhood Power Bussing (Page 1 of 2)
Stop, EVAP, MAF
Gauges
Compressor Controls
Compressor Controls
Figure 10:

Device Controls -- IAC, AIR


Object Number: 805939  Size: FS
Master Electrical Component List
Secondary Air Injection System Description
EVAP,MAF,and EGR
Fuel Pump Control, FTP
OBD II Symbol Description Notice
Fuse Block Underhood Power Bussing (Page 1 of 2)
Fuse Block Underhood Power Bussing (Page 1 of 2)
G101
Figure 11:

Device Controls -- EGR


Object Number: 805944  Size: FS
Master Electrical Component List
Exhaust Gas Recirculation (EGR) System Description
PCM References (Page 2 of 2)
IAC Control
OBD II Symbol Description Notice
Figure 12:

Controlled/Monitored Subsystem References


Object Number: 805946  Size: FS
Master Electrical Component List
Powertrain Control Module Description
PCM References (Page 1 of 2)
EVAP,MAF,and EGR
OBD II Symbol Description Notice
Compressor Controls
Compressor Controls
Compressor Controls
Compressor Controls
Compressor Controls
Cooling Fans
Charging
Low Oil Pressure and Low Oil Indicators
Cruise Control
Starting
Stop Lamp and Torque Signals
Figure 13:

Automatic Transmission Controls


Object Number: 805949  Size: FS
Master Electrical Component List
Powertrain Control Module Description
PCM References (Page 2 of 2)
OBD II Symbol Description Notice
Solenoid Controls and TFT Sensor
PNP Switch
Fluid Pressure Manual Valve Position Switch and ISS Sensor
Solenoid Controls and TFT Sensor
Fluid Pressure Manual Valve Position Switch and ISS Sensor