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

Engine Electrical Components


Object Number: 1542535  Size: LF
(1)Fuse Block - Underhood (Battery Stud)
(2)G102
(3)Battery Current Sensor
(4)Generator
(5)Automatic Transmission
(6)G113
(7)G115 (Battery Cable)
(8)G115
(9)Starter Motor
(10)Battery
Figure 2:

Front of Engine Components (LGD/LZ9)


Object Number: 1700522  Size: LF
(1)Intake Manifold Tuning (IMT) Solenoid Valve
(2)Evaporative Emission (EVAP) Canister Purge Solenoid Valve
(3)Throttle Actuator Control (TAC) Module
(4)Knock Sensor (KS) 2
(5)Starter Solenoid
(6)Starter Motor
(7)Engine Oil Pressure (EOP) Sensor
(8)Camshaft Position (CMP) Actuator Solenoid Valve
(9)Camshaft Position (CMP) Sensor
Figure 3:

Fuel Rail Components (LGD/LZ9)


Object Number: 1700526  Size: MF
(1)Fuel Injector 1
(2)Fuel Injector 3
(3)Fuel Injector 5
(4)Fuel Injector 6
(5)Engine Coolant Temperature (ECT) Sensor
(6)J142
(7)Fuel Injector 4
(8)Fuel Injector 2
(9)Crankshaft Position (CKP) Sensor
(10)X102
Figure 4:

Air Intake System Components (LGD/LZ9)


Object Number: 1700520  Size: LF
(1)Mass Air Flow (MAF)/ Intake Air Temperature (IAT) Sensor
(2)Engine Control Module (ECM)
Figure 5:

Rear of Engine Components (LGD/LZ9)


Object Number: 2028651  Size: LF
(1)Throttle Actuator Control (TAC) Module
(2)Manifold Absolute Pressure (MAP) Sensor
(3)Ignition Control Module (ICM)
(4)Heated Oxygen Sensor (HO2S) 1
(5)Knock Sensor (KS) 1
(6)Block Heater
(7)Crankshaft Position (CKP) Sensor
(8)Engine Coolant Temperature (ECT) Sensor
Figure 6:

Engine Exhaust Components (LGD/LZ9)


Object Number: 1700531  Size: MF
(1)Heated Oxygen Sensor (HO2S) 2
(2)Catalytic Converter
Figure 7:

Internal Electronic Component Locations


Object Number: 840831  Size: LF
(10)Vehicle Speed Sensor (VSS) Assembly
(315a)1-2, 3-4 Shift Solenoid (SS) Valve Assembly
(315b)2-3 Shift Solenoid (SS) Valve Assembly
(322)Pressure Control (PC) Solenoid Valve Assembly
(334)Torque Converter Clutch (TCC) Solenoid Valve Assembly
(391)Transmission Fluid Temperature (TFT) Sensor
(395)Transmission Fluid Pressure (TFP) Manual Valve Position Switch Assembly
(440)Automatic Transmission Input Shaft Speed (ISS) Sensor Assembly
(811)Lever Assembly-Manual Shaft Detent with Shift Position Switch - Internal Mode Switch (IMS)