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

MIL Lamp, Voltage and Grounds, Serial Data


Object Number: 31343  Size: FS
Engine Controls Components
Ignition System
OBD II Symbol Description Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 2:

Ignition System


Object Number: 31344  Size: FS
Engine Controls Components
Fuel Injector Control
MIL Lamp, Voltage and Grounds, Serial Data
OBD II Symbol Description Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 3:

Fuel Injector Control


Object Number: 31376  Size: FS
Engine Controls Components
Fuel Pump Control
Ignition System
OBD II Symbol Description Notice
Handling ESD Sensitive Parts Notice
Figure 4:

Fuel Pump Control


Object Number: 31374  Size: FS
Engine Controls Components
Sensors
Fuel Injector Control
OBD II Symbol Description Notice
Handling ESD Sensitive Parts Notice
Figure 5:

Sensors


Object Number: 31380  Size: FS
Engine Controls Components
MAF, EVAP, EGR
Fuel Pump Control
OBD II Symbol Description Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 6:

MAF, EVAP, EGR


Object Number: 31388  Size: FS
Engine Controls Components
HO2S
Sensors
OBD II Symbol Description Notice
Handling ESD Sensitive Parts Notice
Figure 7:

HO2S


Object Number: 31400  Size: FS
Engine Controls Components
IAC, Gen Control, Trans Range
MAF, EVAP, EGR
OBD II Symbol Description Notice
Handling ESD Sensitive Parts Notice
Figure 8:

IAC, Gen Control, Trans Range


Object Number: 31402  Size: FS
Engine Controls Components
VSS, Cruise Control
HO2S
OBD II Symbol Description Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 9:

VSS, Cruise Control


Object Number: 31406  Size: FS
Engine Controls Components
TCC, Brake Switch
IAC, Gen Control, Trans Range
OBD II Symbol Description Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Figure 10:

TCC, Brake Switch


Object Number: 31414  Size: FS
Engine Controls Components
A/C Controls
VSS, Cruise Control
OBD II Symbol Description Notice
Handling ESD Sensitive Parts Notice
Figure 11:

A/C Controls


Object Number: 31416  Size: FS
Engine Controls Components
Engine Cooling Fans
TCC, Brake Switch
OBD II Symbol Description Notice
Handling ESD Sensitive Parts Notice
Figure 12:

Engine Cooling Fans


Object Number: 31420  Size: FS
Engine Controls Components
A/C Controls
OBD II Symbol Description Notice
Handling ESD Sensitive Parts Notice