GM Service Manual Online
For 1990-2009 cars only

Figure 1:

Engine Harness Routing Views 1 of 2 (LNF)


Object Number: 1749129  Size: LF
(1)Fuse Block-Underhood
(2)C162
(3)Transmission Control Module (TCM) (M82)
(4)Engine Control Module (ECM) Bracket
(5)Splice S137
(6)Splice S142
(7)Splice S104
(9)Splice S120 (M82)
Figure 2:

Engine Harness Routing Views 2 of 2 (LNF)


Object Number: 1749126  Size: LF
(1)S123
(2)S124
(3)Engine Harness
(4)S121
(5)C100
(6)Fuse Block - Underhood
(7)G103
(8)S140
(9)S107
(10)C101 (M82)
(11)Automatic Transmission (M82)
Figure 3:

Above the Radiator


Object Number: 1749431  Size: LF
(1)Air Cleaner
(2)Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
Figure 4:

Left Side of Engine (LNF)


Object Number: 1749428  Size: LF
(1)Manifold Absolute Pressure (MAP) Sensor
(2)Throttle Body
(3)Starter
(4)A/C Compressor
(5)Generator
(6)Evaporative Emission (EVAP) Canister Purge Solenoid Valve
Figure 5:

Left Side of Engine Compartment - LNF


Object Number: 1830676  Size: LF
(1)Fuel Rail Pressure (FRP) Sensor
(2)Intake Air Pressure and Temperature Sensor
(3)Brake Booster Vacuum Sensor
(4)Brake Fluid Level Switch
(5)Brake Booster Pump Motor
Figure 6:

Right Side of Engine (LNF)


Object Number: 1749426  Size: LF
(1)Turbocharger
(2)Heated Oxygen Sensor (HO2S) 2
(3)Heated Oxygen Sensor (HO2S) 1
(4)Camshaft Position (CMP) Sensor - Exhaust
Figure 7:

Left Side of Engine (LNF)


Object Number: 1749429  Size: LF
(1)Ignition Coil 1
(2)Ignition Coil 2
(3)Ignition Coil 3
(4)Ignition Coil 4
(5)High Pressure Fuel Pump
(6)Fuel Injector 1
(7)Fuel Injector 2
(8)Fuel Injector 3
(9)Fuel Injector 4
(10)Manifold Absolute Pressure (MAP) Sensor
(11)Engine Oil Pressure (EOP) Switch
(12)Crankshaft Position (CKP) Sensor
(13)Knock Sensor (KS) 2
(14)Starter Motor
(15)Evaporative Emission (EVAP) Canister Purge Solenoid Valve
(16)Camshaft Position (CMP) Actuator Solenoid - Exhaust
(17)Camshaft Position (CMP) Actuator Solenoid - Intake
Figure 8:

Lower Left Side of I/P


Object Number: 1831798  Size: LF
(1)Brake Pedal Position Sensor
(2)Accelerator Pedal Position (APP) Sensor
(3)Data Link Connector (DLC)
(4)Data Link Terminator Resistor
(5)Clutch Pedal Position (CPP) Switch (MA5)
(6)Clutch Start Switch (MA5)
(7)C500
(8)C501
(9)Steering Angle Sensor (JL4)
Figure 1:

Engine Harness Routing 1 of 2


Object Number: 1889817  Size: LF
(1)Fuse Block - Underhood
(2)X162
(3)Engine Control Module (ECM)
(4)Engine Control Module (ECM) Bracket
(5)Splice J137
(6)Splice J142
(7)Electronic Brake Control Module (EBCM)
(8)Splice J104
(9)Engine Harness
Figure 2:

Engine Harness Routing 2 of 2 (LNF)


Object Number: 1865714  Size: LF
(1)Splice J123
(2)Splice J124
(3)Engine Harness
(4)Splice J121
(5)X100
(6)Fuse Block - Underhood
(7)G103
(8)Splice J140
(9)Splice J107
Figure 3:

Above the Radiator


Object Number: 1749431  Size: LF
(1)Air Cleaner
(2)Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
Figure 4:

Left Side of Engine (1 of 2)


Object Number: 1749428  Size: LF
(1)Manifold Absolute Pressure (MAP) Sensor
(2)Throttle Body
(3)Starter Motor
(4)A/C Compressor
(5)Generator
(6)Evaporative Emission (EVAP) Canister Purge Solenoid Valve
Figure 5:

Left Side of Engine Compartment (LNF)


Object Number: 1830676  Size: LF
(1)Fuel Pressure Sensor
(2)Intake Air Pressure and Temperature Sensor
(3)Brake Booster Vacuum Sensor (LNF)
(4)Brake Fluid Level Switch
(5)Brake Booster Pump Motor (LNF)
Figure 6:

Right Side of Engine (LNF)


Object Number: 1889884  Size: LF
(1)Turbocharger
(2)Turbocharger Wastegate Solenoid
(3)Heated Oxygen Sensor (HO2S) 2
(4)Heated Oxygen Sensor (HO2S) 1
(5)Engine Coolant Temperature (ECT) Sensor
(6)Camshaft Position (CMP) Sensor - Exhaust
Figure 7:

Left Side of Engine (2 of 2) (LNF)


Object Number: 1749429  Size: LF
(1)Ignition Coil 1
(2)Ignition Coil 2
(3)Ignition Coil 3
(4)Ignition Coil 4
(5)High Pressure Fuel Pump
(6)Fuel Injector 1
(7)Fuel Injector 2
(8)Fuel Injector 3
(9)Fuel Injector 4
(10)Manifold Absolute Pressure (MAP) Sensor
(11)Engine Oil Pressure (EOP) Switch
(12)Crankshaft Position (CKP) Sensor
(13)Knock Sensor (KS) 2
(14)Starter Motor
(15)Evaporative Emission (EVAP) Canister Purge Solenoid Valve
(16)Camshaft Position (CMP) Actuator Solenoid Valve - Exhaust
(17)Camshaft Position (CMP) Actuator Solenoid Valve - Intake
Figure 8:

Lower Left Side of I/P


Object Number: 1874596  Size: LF
(1)Brake Pedal Position (BPP) Sensor
(2)Accelerator Pedal Position (APP) Sensor
(3)Data Link Connector (DLC)
(4)Data Link Resistor
(5)X500
(6)X501
(7)Steering Angle Sensor (JL9)
Figure 9:

Fuel Tank Components


Object Number: 1849112  Size: LF
(1)Fuel Tank
(2)Evaporative Emission (EVAP) Canister Vent Solenoid Valve
(3)Fuel Pump and Sender Assembly