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

PCM Power and Grounds


Object Number: 589960  Size: FS
UAWJB, PCM, PNP Switch, and Backup Relay
Fuse Block, UAWJB, PCM, BCM, Cluster, Turn Signal Switch, and SDM Module
Fuse Block, UAWJB, PCM, BCM, Cluster, Turn Signal Switch, and SDM Module
G100, G113 and G113
Fuse Block Outside Rearview Mirror, Cluster, BCM, PCM, and BTSI Fuse
Fuse Block Outside Rearview Mirror, Cluster, BCM, PCM, and BTSI Fuse
G200
Fuse Block, UAWJB, PCM, BCM, Cluster, Turn Signal Switch, and SDM Module
IPC Class 2 Serial Data MIL Outputs and Engine Coolant Level Indicator Input
G203
Radio, HVAC, RFA, Cluster, Cel Tel, BCM Power, INADV Power Bus, Radio PRM Sound, and Cigar Lighter/Data Link Fuses
Radio, HVAC, RFA, Cluster, Cel Tel, BCM Power, INADV Power Bus, Radio PRM Sound, and Cigar Lighter/Data Link Fuses
Serial Data Class 2
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Engine Controls Component Views
Powertrain Control Module Description
Camshaft and Crankshaft Position Sensor
OBD II Symbol Description Notice
Figure 2:

Camshaft and Crankshaft Position Sensor


Object Number: 589963  Size: FS
UAWJB, Automatic Transaxle, ICM, HO2S1 and HO2S2
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Engine Controls Component Views
Powertrain Control Module Description
Fuel Tank Inputs
PCM Power and Grounds
OBD II Symbol Description Notice
Figure 3:

Fuel Tank Inputs


Object Number: 589970  Size: FS
Handling ESD Sensitive Parts Notice
UAWJB
G402 cont.
G100, G113 and G113
Handling ESD Sensitive Parts Notice
G100, G113 and G113
Engine Controls Component Views
Powertrain Control Module Description
Fuel Injectors Input
Camshaft and Crankshaft Position Sensor
OBD II Symbol Description Notice
Figure 4:

Fuel Injectors Input


Object Number: 589974  Size: FS
UAWJB, Fuel Injectors
Handling ESD Sensitive Parts Notice
Engine Controls Component Views
Powertrain Control Module Description
A/C, Throttle Position, Manifold Absolute Pressure, Engine CoolANT Temperature and Intake Air Temperature Sensors
Fuel Tank Inputs
OBD II Symbol Description Notice
Figure 5:

A/C, Throttle Position, Manifold Absolute Pressure, Engine Coolant Temperature and Intake Air Temperature Sensors


Object Number: 589976  Size: FS
Fuel Tank Inputs
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Engine Controls Component Views
Powertrain Control Module Description
Heated Oxygen Sensors
Fuel Injectors Input
OBD II Symbol Description Notice
Figure 6:

Heated Oxygen Sensors


Object Number: 589980  Size: FS
UAWJB, Automatic Transaxle, ICM, HO2S1 and HO2S2
G113 and G117
G113 and G117
Handling ESD Sensitive Parts Notice
Engine Controls Component Views
Powertrain Control Module Description
Mass Air Flow, EGR Valve and EVAP Canister Vent and Purge Solenoids
A/C, Throttle Position, Manifold Absolute Pressure, Engine CoolANT Temperature and Intake Air Temperature Sensors
OBD II Symbol Description Notice
Figure 7:

Mass Air Flow, EGR Valve and EVAP Canister Vent and Purge Solenoids


Object Number: 589989  Size: FS
UAWJB
UAWJB
G100, G113 and G113
Handling ESD Sensitive Parts Notice
Engine Controls Component Views
Powertrain Control Module Description
Idle Air Control Valve Inputs
Heated Oxygen Sensors
OBD II Symbol Description Notice
Figure 8:

Idle Air Control Valve Inputs


Object Number: 589994  Size: FS
G100, G113 and G113
Handling ESD Sensitive Parts Notice
Engine Controls Component Views
Powertrain Control Module Description
Cruise Control Module Input/Output and AIR System
Mass Air Flow, EGR Valve and EVAP Canister Vent and Purge Solenoids
OBD II Symbol Description Notice
Figure 9:

Cruise Control Module Input/Output and AIR System


Object Number: 589999  Size: FS
UAWJB, Stop Lamp Switch, EVAP, MAF Secondary Air Injection Bypass Valve Solenoid
Handling ESD Sensitive Parts Notice
UAWJB, PCM, PNP Switch, and Backup Relay
G101
Handling ESD Sensitive Parts Notice
Engine Controls Component Views
Powertrain Control Module Description
IPC Class 2 Serial Data Input from PCM and Generator Input/Output
Idle Air Control Valve Inputs
OBD II Symbol Description Notice
Figure 10:

IPC Class 2 Serial Data Input from PCM and Generator Input/Output


Object Number: 590005  Size: FS
Handling ESD Sensitive Parts Notice
IPC Class 2 Serial Data MIL Outputs and Brake Fluid Level Indicator Input
UAWJB, Ignition Switch, and Fuse Block
Handling ESD Sensitive Parts Notice
G203
Engine Controls Component Views
Powertrain Control Module Description
Transaxle Range Switch Inputs
Cruise Control Module Input/Output and AIR System
OBD II Symbol Description Notice
Figure 11:

Transaxle Range Switch Inputs


Object Number: 590009  Size: FS
Park Neutral Switch Schematic
G113 and G117
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Fuse Block, UAWJB, PCM, BCM, Cluster, Turn Signal Switch, and SDM Module
UAWJB
Engine Controls Component Views
Powertrain Control Module Description
Automatic Transaxle Inputs
IPC Class 2 Serial Data Input from PCM and Generator Input/Output
OBD II Symbol Description Notice
Figure 12:

Automatic Transaxle Inputs


Object Number: 590013  Size: FS
UAWJB, Stop Lamp Switch, EVAP, MAF Secondary Air Injection Bypass Valve Solenoid
UAWJB, Automatic Transaxle, ICM, HO2S1 and HO2S2
Handling ESD Sensitive Parts Notice
Engine Controls Component Views
Powertrain Control Module Description
Heater A/C Control Output and A/C Compressor Clutch Coil
IPC Class 2 Serial Data Input from PCM and Generator Input/Output
OBD II Symbol Description Notice
Figure 13:

Heater A/C Control Output and A/C Compressor Clutch Coil


Object Number: 590023  Size: FS
Low Blower, Cruise, and HVAC Fuses
Low Blower, Cruise, and HVAC Fuses
UAWJB, Ignition Switch, and Fuse Block
UAWJB
UAWJB
G100, G113 and G113
G100, G113 and G113
UAWJB
G113 and G117
Handling ESD Sensitive Parts Notice
G113 and G117
Engine Controls Component Views
Powertrain Control Module Description
Cooling Fans Output
Automatic Transaxle Inputs
OBD II Symbol Description Notice
Figure 14:

Cooling Fans Output


Object Number: 590032  Size: FS
G113 and G117
G113 and G117
G113 and G117
UAWJB
Handling ESD Sensitive Parts Notice
Engine Controls Component Views
Powertrain Control Module Description
Heater A/C Control Output and A/C Compressor Clutch Coil
OBD II Symbol Description Notice