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

Engine Compartment, in the Left Front Corner


Object Number: 460288  Size: LF
(1)Powertrain Control Module (PCM) C1
(2)Powertrain Control Module (PCM) C2
(3)Air Cleaner Assembly
(4)Powertrain Control Module (PCM)
(5)S105
Figure 2:

Engine Compartment, Left Side


Object Number: 460294  Size: LF
(1)Intake Air Temp (IAT) Sensor
(2)Cruise Control Module
(3)Air Cleaner Assembly
Figure 3:

Manifold Absolute Pressure Sensor


Object Number: 460295  Size: LF
(1)Manifold Absolute Pressure (MAP) Sensor
Figure 4:

Upper Front of Engine


Object Number: 460302  Size: LF
(1)Fuel Injector 3
(2)Evaporative Emissions (EVAP) Purge Canister
(3)Fuel Injector 5
(4)Idle Air Control (IAC) Valve
(5)Throttle Position (TP) Sensor
(6)Mass Air Flow (MAF) Sensor
(7)S106
(8)Engine Coolant Temp (ECT) Sensor
(9)C103
(10)S108
(11)S107
(12)Ignition Control Module (ICM)
(13)To Manifold Absolute Pressure (MAP) Sensor
(14)Fuel Injector 1
Figure 5:

Upper Side of Engine


Object Number: 460305  Size: LF
(1)Exhaust Gas Recirculation (EGR) Valve
(2)Fuel Injector #6
(3)Fuel Injector #4
(4)Fuel Injector #2
(5)To Generator
(6)To Air Solenoid
(7)Heated Oxygen Sensor (H02S) Bank 1 Sensor 1
(8)S103
(9)S104
(10)To PCM
(11)C100
Figure 6:

Lower Rear of Engine


Object Number: 460307  Size: LF
(1)Engine Oil Pressure Sensor
(2)Vehicle Speed Sensor (VSS)
(3)Power Steering Pressure Sensor
(4)C125
Figure 7:

Lower Front of Engine


Object Number: 460459  Size: LF
(1)Knock Sensor
(2)Starter Solenoid
Figure 8:

Rear Top of Engine


Object Number: 460460  Size: LF
(1)Evaporative Emissions (EVAP) Cannister Purge Valve
(2)Generator
(3)Map Sensor
Figure 9:

Brake Switches


Object Number: 461056  Size: LF
(1)Stop lamp/Automatic Trans Shift Lock Control Switch, C1
(2)Stop lamp/Automatic Trans Shift Lock Control Switch, C2
(3)Stop lamp/Automatic Trans Shift Lock Control Switch
(4)Stop lamp Switch
(5)Stop lamp Switch Connector