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

Front of Engine Compartment 1 of 2 (LAT)


Object Number: 1873502  Size: LF
(1)Transmission Control Module (TCM)
(2)Engine Control Module (ECM)
(3)Battery
(4)Fuse Block - Underhood
(5)Starter Generator Control Module (SGCM)
(6)Pump Driver
(7)Starter Generator Control Module (SGCM) Bracket
(8)Transmission Pump
(9)Starter Generator
Figure 2:

Front of Engine Components 2 of 2 (LAT)


Object Number: 1873410  Size: LF
(1)Throttle Body
(2)Transmission Pump
(3)Crankshaft Position (CKP) Sensor
(4)Engine Oil Pressure (EOP) Switch
(5)Starter
(6)Starter Generator Control Module (SGCM) Cooling Pump
(7)Knock Sensor (KS)
Figure 3:

Top of Engine Components (LAT)


Object Number: 1814306  Size: LF
(1)Mass Air Flow (MAF) Sensor
(2) Camshaft Position (CMP) Actuator Solenoid - Intake
(3)Camshaft Position (CMP) Actuator Solenoid - Exhaust
(4)Ignition Coil Module 1
(5)Ignition Coil Module 2
(6)Ignition Coil Module 3
(7)Ignition Coil Module 4
(8)Throttle Actuator Control (TAC) Module
(9)Fuel Injector 4
(10)Fuel Injector 3
(11)Fuel Injector 2
(12)Fuel Injector 1
(13)Manifold Absolute Pressure (MAP) Sensor
(14)X130
Figure 4:

Left Side of Engine Compartments (LAT)


Object Number: 1873454  Size: LF
(1)Camshaft Position (CMP) Sensor - Intake
(2)G106
(3)G110
(4)Camshaft Position (CMP) Sensor - Exhaust
(5)Master Cylinder
Figure 5:

Rear of Engine Components (LAT)


Object Number: 1873401  Size: LF
(1)Evaporative Emission (EVAP) Canister Purge Solenoid
(2)Heated Oxygen Sensor (HO2S) 1
(3)Vehicle Speed Sensor (VSS)
(4)Heated Oxygen Sensor (HO2S) 2
(5)Starter
(6)Engine Coolant Temperature (ECT) Sensor
(7)Park/Neutral Position (PNP) Switch
(8)Heater Coolant Pump
Figure 6:

Top of Engine Components (LE5)


Object Number: 1631745  Size: LF
(1)Ignition Coil 4
(2)Ignition Coil 3
(3)Ignition Coil 2
(4)Camshaft Position (CMP) Actuator Solenoid - Intake
(5)Camshaft Position (CMP) Actuator Solenoid - Exhaust
(6)Ignition Coil 1
(7)G107
(8)Engine Harness
(9)Engine Block Heater Connector
(10)Heated Oxygen Sensor (HO2S) 1
(11)Heated Oxygen Sensor (HO2S) 2
(12)Engine Coolant Temperature (ECT) Sensor
(13)Camshaft Position (CMP) Sensor 2 (Exhaust)
(14)G110
(15)Camshaft Position (CMP) Sensor 1 (Intake)
(16)Evaporative Emission (EVAP) Canister Purge Solenoid
Figure 7:

Front of the Engine Components 1 of 2 (LE5)


Object Number: 1555567  Size: LF
(1)Mass Air Flow (MAF) / Intake Air Temperature (IAT) Sensor Connector
(2)J101
(3)G106
(4)Fuse Block - Underhood X1
(5)X108
(6)X100
(7)J118
(8)G105
(9)X130
Figure 8:

Front of the Engine Components 2 of 2 (LE5)


Object Number: 1555577  Size: LF
(1)Fuel Injector 1
(2)Fuel Injector 2
(3)Fuel Injector 3
(4)Manifold Absolute Pressure (MAP) Sensor
(5)Fuel Injector 4
(6)Evaporative Emission (EVAP) Canister Purge Solenoid Valve
(7)Camshaft Position (CMP) Sensor - Intake
(8)Knock Sensor (KS)
(9)Engine Oil Pressure (EOP) Switch
(10)Crankshaft Position (CKP) Sensor
(11)Starter Solenoid
(12)Starter Motor
(13)Intake Manifold
Figure 9:

Rear of the Engine Components (LE5)


Object Number: 1555580  Size: LF
(1)Evaporative Emission (EVAP) Canister Purge Solenoid Valve
(2)Camshaft Position (CMP) Sensor - Exhaust
(3)Heated Oxygen Sensor (HO2S) 1
(4)Heated Oxygen Sensor (HO2S) 2
(5)Starter Motor
(6)Engine Coolant Temperature (ECT) Sensor
(7)Camshaft Position (CMP) Sensor - Intake
Figure 10:

Top of Engine Components 1 of 2 (LZ4)


Object Number: 1829714  Size: LF
(1)Fuel Injector 6
(2)Fuel Injector 5
(3)Fuel Injector 4
(4)Camshaft Position (CMP) Sensor
(5)Fuel Injector 1
(6)Fuel Injector 2
(7)Fuel Injector 3
Figure 11:

Top of Engine Components 2 of 2 (LZ4)


Object Number: 1832322  Size: LF
(1)Ignition Control Module (ICM)
(2)Fuel Injector 3
(3)Fuel Injector 5
(4)Fuel Injector 4
(5)Fuel Injector 6
(6)Fuel Injector 2
(7)Camshaft Position (CMP) Sensor
(8)Generator
(9)Fuel Injector 1
Figure 12:

Rear of Engine Components 1 of 3 (LZ4)


Object Number: 1829711  Size: LF
(1)MAP Sensor
(2)Ignition Control Module (ICM)
(3)Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
(4)Knock Sensor 1
(5)Engine Coolant Temperature (ECT) Sensor
(6)Crankshaft Position (CKP) Sensor
(7)Vehicle Speed Sensor (VSS)
(8)Engine Oil Level Sensor
(9)Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
(10)Park/Neutral Position (PNP) Switch
Figure 13:

Rear of Engine Components 2 of 3 (LZ4)


Object Number: 1775943  Size: LF
(1)X108
(2)Engine Control Module (ECM) X2
(3)Engine Control Module (ECM) X1
(4)X103
(5)Upper Intake Manifold
(6)Ignition Control Module (ICM)
(7)Transmission
(8)G106
(9)G105
(10)Fuse Block - Underhood
Figure 14:

Rear of the Engine Components 3 of 3 (LZ4)


Object Number: 1832325  Size: LF
(1)Throttle Actuator Control (TAC) Module
(2)Manifold Absolute Pressure (MAP) Sensor
(3)Ignition Control Module (ICM)
(4)Knock Sensor (KS) 2
(5)Engine Block Heater
(6)Engine Oil Level Sensor
(7)Crankshaft Position (CKP) Sensor
(8)Engine Coolant Temperature (ECT) Sensor
Figure 15:

Front of the Engine Components 1 of 2 (LZ4)


Object Number: 1832324  Size: LF
(1)Camshaft Position (CMP) Actuator Solenoid
(2)Throttle Actuator Control (TAC) Module
(3)Evaporative Emission (EVAP) Canister Purge Solenoid
(4)Knock Sensor (KS) 1
(5)Starter Motor
(6)Engine Oil Pressure (EOP) Sensor
(7)A/C Compressor Clutch
Figure 16:

Front of Engine Components 2 of 2 (LZ4)


Object Number: 1829705  Size: LF
(1)MAF/IAT Sensor
(2)Evaporative Emission (EVAP) Canister Purge Solenoid Valve
(3)Throttle Actuator Control (TAC) Module
(4)Fuse Block - Underhood
(5)Engine Control Module (ECM)
(6)Transmission Control Module (TCM)
(7)X100
(8)Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
(9)Starter
(10)Engine Oil Pressure (EOP) Sensor
(11)Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
(12)Knock Sensor 2
Figure 17:

Left of Engine Components (LZ4)


Object Number: 1265648  Size: MF
(1)Engine Oil Pressure (EOP) Sensor
(2)Starter
(3)Starter Solenoid
(4) Knock Sensor (KS) 2
Figure 18:

Oxygen Sensors Components (LZ4)


Object Number: 1832318  Size: LF
(1)Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
(2)Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
(3)Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
(4)Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
Figure 19:

Top of Engine Components (LY7)


Object Number: 1832319  Size: LF
(1)Ignition Coil 5
(2)Fuel Injector 5
(3)Manifold Absolute Pressure (MAP) Sensor
(4)Fuel Injector 6
(5)Ignition Coil 6
(6)Fuel Injector 4
(7)Ignition Coil 4
(8)Ignition Coil 2
(9)Fuel Injector 2
(10)Fuel Injector 1
(11)Ignition Coil 1
(12)Fuel Injector 3
(13)Ignition Coil 3
Figure 20:

Front of Engine Compartment Components 1 of 3 (LY7)


Object Number: 1552095  Size: LF
(1)Air Cleaner Assembly
(2)Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
(3)Engine Block
Figure 21:

Front of Engine Compartment Components 2 of 3 (LY7)


Object Number: 1832321  Size: LF
(1)Engine Coolant Temperature (ECT) Sensor
(2)Throttle Actuator Control (TAC) Module
(3)Starter Motor
(4)Knock Sensor (KS) 2
(5)A/C Compressor Clutch
(6)Engine Oil Pressure (EOP) Switch
(7)Generator
Figure 22:

Front of Engine Compartment Components 3 of 3 (LY7)


Object Number: 1775974  Size: LF
(1)X130
(2)J199
(3)Engine Control Module (ECM) X2
(4)Engine Control Module (ECM) X3
(5)X108
(6)Left Front Frame Rail
(7)G113
Figure 23:

Rear of Engine Components 1 of 2 (LY7)


Object Number: 1775982  Size: LF
(1)X108
(2)G105
(3)J198
(4)Upper Intake Manifold
(5)G111
(6)Fuse Block - Underhood X1
Figure 24:

Rear of Engine Components 2 of 2 (LY7)


Object Number: 1832320  Size: LF
(1)Camshaft Position (CMP) Sensor - Bank 1 Exhaust
(2)Evaporative Emission (EVAP) Canister Purge Solenoid
(3)Camshaft Position (CMP) Sensor - Bank 1 Intake
(4)Intake Manifold Tuning (IMT) Valve Solenoid
(5)Camshaft Position (CMP) Sensor - Bank 2 Intake
(6)Camshaft Position (CMP) Actuator Solenoid - Bank 2 Intake
(7)Camshaft Position (CMP) Sensor - Bank 2 Exhaust
(8)Generator
(9)Camshaft Position (CMP) Actuator Solenoid - Bank 2 Exhaust
(10)Camshaft Position (CMP) Actuator Solenoid - Bank 1 Intake
(11)Camshaft Position (CMP) Actuator Solenoid - Bank 1 Exhaust
(12)Knock Sensor (KS) 1
(13)Crankshaft Position (CKP) Sensor
(14)Engine Block Heater
Figure 25:

CMP Components (LY7)


Object Number: 868189  Size: LF
(1)Camshaft Position (CMP) Sensor - Exhaust Bank 1
(2)Camshaft Position (CMP) Actuator Solenoid - Exhaust Bank 1
(3)Camshaft Position (CMP) Actuator Solenoid - Intake Bank 1
(4)Camshaft Position (CMP) Sensor - Intake Bank 1
(5)Camshaft Position (CMP) Sensor - Intake Bank 2
(6)Camshaft Position (CMP) Actuator Solenoid - Intake Bank 2
(7)Camshaft Position (CMP) Actuator Solenoid - Exhaust Bank 2
(8)Camshaft Position (CMP) Sensor - Exhaust Bank 2
Figure 26:

Oxygen Sensors Components (LY7)


Object Number: 1832318  Size: LF
(1)Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
(2)Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
(3)Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
(4)Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
Figure 27:

Hybrid Controls Components 1 of 2


Object Number: 1873502  Size: LF
(1)Transmission Control Module (TCM)
(2)Engine Control Module (ECM)
(3)Battery
(4)Fuse Block - Underhood
(5)Starter Generator Control Module (SGCM)
(6)Pump Driver
(7)Starter Generator Control Module (SGCM) Bracket
(8)Transmission Pump
(9)Starter Generator
Figure 28:

Hybrid Controls Components 2 of 2


Object Number: 1873486  Size: LF
(1)Electronic Brake Control Module (EBCM)
(2)Brake Fluid Level Switch
(3)Coolant Level Switch
(4)Brake Fluid Pressure Sensor
(5)Heater Coolant Pump
(6)Starter Generator Control Module (SGCM) Cooling Pump
Figure 29:

Automatic Transmission Electronic Components (MN5)


Object Number: 1776828  Size: LF
(13)TFP Manual Valve Position Switch Assembly
(46)Input Speed Sensor
(62)Output Speed Sensor
(138)4-3 Solenoid - L4 Hybrid
(225)Auxiliary Pump - L4 Hybrid
(305)1-2 and 2-3 Shift Solenoid Valves
(305)1-2 and 2-3 Shift Solenoid Valves
(312)Pressure Control Solenoid
(335)TCC Control PWM Solenoid
Figure 30:

Automatic Transmission Electronic Components (MH2)


Object Number: 1760302  Size: LF
(15)Control Solenoid (+ Body and TCM) Valve Assembly
(19)A/Trans Output Speed Sensor Assembly
(400)A/Trans Input Speed Sensor Assembly
(511)Manual Shift Detent (+Shaft Position Switch) Lever Assembly
Figure 31:

Engine Control Module (ECM) and Transmission Control Module (TCM)


Object Number: 1832315  Size: LF
(1)Battery
(2)Engine Control Module (ECM)
(3)Transmission Control Module (TCM)