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

Control Module Location


Object Number: 1616731  Size: MF
(1)Engine Control Module (ECM)
(2)Engine Control Module (ECM) Bracket Bolt
(3)Engine Control Module (ECM) Bracket
(4)Transmission Control Module (TCM) Bolt
(5)Transmission Control Module (TCM)
Figure 2:

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 3:

Engine Harness Routing Views 2 of 2 (LNF)


Object Number: 1749126  Size: LF
(1)J123
(2)J124
(3)Engine Harness
(4)J121
(5)X100
(6)Fuse Block - Underhood
(7)G103
(8)J140
(9)J107
(10)X175 (M82)
(11)Automatic Transmission (M82)
Figure 4:

Engine Harness Splices (LNF)


Object Number: 1851833  Size: LF
(1)J116
(2)J117
(3)J106
(4)J123
(5)J107
(6)J140
(7)J108
(8)J110
(9)J102
(10)J137
(11)J141
(12)J104
(13)J126
(14)J121
Figure 5:

Left Side of Engine (LNF)


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 6:

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 7:

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