GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 HHR 🢒 Power and Signal Distribution 🢒 Wiring Systems and Power Management 🢒 Powertrain Component Views
Figure 1:

Electronic Components
Object Number: 1982293 Size: LF
(1)TFP Manual Valve Position Switch Assembly
(2)1-2 Shift Solenoid Valve
(3)2-3 Shift Solenoid Valve
(4)Output Speed Sensor
(5)Input Speed Sensor
(6)Pressure Control Solenoid
(7)TCC Control PWM Solenoid
Figure 2:

Rear of Engine - L61
Object Number: 1394466 Size: MF
(1)Heated Oxygen Sensor (HO2S) 1
(2)Heated Oxygen Sensor (HO2S) 2
Figure 3:

Engine - Rear (LNF)
Object Number: 2003400 Size: LF
(1)Engine Coolant Temperature (ECT) Sensor
(2)Camshaft Position (CMP) Sensor Exhaust
(3)Mass Air Flow (MAF)/ Intake Air Temperature (IAT) Sensor
(4)Turbocharger Wastegate Solenoid (LNF)
(5)Turbocharger
(6)Heated Oxygen Sensor (HO2S) 2
(7)Heated Oxygen Sensor (HO2S) 1
Figure 4:

Engine - Top (LNF)
Object Number: 2003405 Size: LF
(1)Ignition Coil 2
(2)Ignition Coil 3
(3)Ignition Coil 4
(4)Fuel Injector 4
(5)Fuel Injector 3
(6)Fuel Injector 2
(7)Fuel Injector 1
(8)Camshaft Position (CMP) Actuator Solenoid Exhaust
(9)Camshaft Position (CMP) Actuator Solenoid Intake
(10)Ignition Coil 1
Figure 5:

Engine - Front (LNF)
Object Number: 2003407 Size: LF
(1)Fuel Rail Pressure Sensor (FPS) (LNF)
(2)Throttle Actuator Control (TAC) Module
(3)Turbo Bypass Valve Solenoid (LNF)
(4)Manifold Absolute Pressure (MAP) Sensor
(5)High Pressure Fuel Pump (LNF)
(6)Camshaft Position (CMP) Sensor Intake
(7)Knock Sensor (KS) 1 (LNF)
(8)Crankshaft Position (CKP) Sensor
(9)Engine Oil Pressure (EOP) Switch
(10)Starter
(11)A/C Compressor Clutch
(12)Generator
(13)Evaporative Emission (EVAP) Canister Purge Solenoid Valve
Figure 6:

Engine with Transmission (LNF/MN5)
Object Number: 2004458 Size: LF
(1)X100 (MN5)
(2)Engine (LNF)
(3)Heated Oxygen Sensor (HO2S) 1
(4)Vehicle Speed Sensor (OSS/VSS) (MN5)
(5)Heated Oxygen Sensor (HO2S) 2
(6)Park Neutral Position (PNP) Switch (MN5)
(7)Transmission (MN5)
Figure 7:

Engine with Transmission (LNF/MU3)
Object Number: 2004516 Size: LF
(1)Transmission (MU3)
(2)Backup Lamp Switch (MU3)
(3)Engine (LNF)
(4)Heated Oxygen Sensor (HO2S) 1
(5)Vehicle Speed Sensor (VSS) (MU3)
(6)Heated Oxygen Sensor (HO2S) 2
Figure 8:

Top Front of the Engine
Object Number: 1540536 Size: MF
(1)Fuel Injector 1
(2)Fuel Injector 2
(3)Fuel Injector 3
(4)Fuel Injector 4
Figure 9:

Rear of the Engine Block (L61)
Object Number: 1546086 Size: LF
(1)Engine Coolant Temperature (ECT) Sensor
(2)Engine Block
Figure 10:

Left Side of the Engine Compartment
Object Number: 1546023 Size: LF
(1)Transmission Control Module (TCM) (MN5)
(2)Left Front Strut Tower
(3)Engine Control Module (ECM)
(4)Electronic Brake Control Module (EBCM) (JM4/JL9)
(5)Fuse Block - Underhood Bracket
Figure 11:

Front of the Engine (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
(13)Intake Manifold
Figure 12:

Engine Harness - Front (L61)
Object Number: 1592505 Size: LF
(1)X160
(2)Engine Valve Cover
(3)Fuse Block - Underhood X1
(4)X101
(5)J103
(6)X100 (MN5)
(7)G107
(8)G105
Figure 13:

Engine Harness - Front (LE5)
Object Number: 1592499 Size: LF
(1)Engine Cover
(2)J103
(3)X101
(4)Fuse Block - Underhood X1
(5)Engine Control Module X2
(6)Engine Control Module X3
(7)X160
(8)Intake Manifold
(9)G105
Figure 14:

Engine Harness - Rear (L61)
Object Number: 1592508 Size: LF
(1)Fuse Block - Underhood X1
(2)Engine Block
(3)Neutral Safety Backup Switch Connector
(4)G107
(5)X100
(6)J103
(7)Engine Control Module Connector
(8)Transmission Control Module Connector
Figure 15:

Engine Harness - Rear (LE5)
Object Number: 1592501 Size: LF
(1)Fuse Block - Underhood X1
(2)X101
(3)J106
(4)J105
(5)G108
(6)J107
(7)Engine Block
(8)Starter
(9)G107
(10)Engine Control Module X3
(11)Engine Control Module X2
Figure 16:

Fuel Tank Components
Object Number: 1652140 Size: LF
(1)Fuel Tank
(2)Fuel Pump and Sender Assembly
(3)Fuel Tank Pressure Sensor
(4)Evaporative Emission (EVAP) Canister Vent Solenoid Valve
(5)Evaporative Emission (EVAP) Canister
Figure 17:

Left Side View of Engine
Object Number: 1614920 Size: LF
(1)MAF/IAT Sensor
(2)Ignition Coil Module 1 Connector
(3)Ignition Coil Module 2 Connector
(4)Ignition Coil Module 3 Connector
(5)Ignition Coil Module 4 Connector
(6)Fuel Rail
(7)Fuel Injector 1
(8)Fuel Injector 2
(9)Fuel Injector 3
(10)Fuel Injector 4
(11)Throttle Actuator Control (TAC) Module
Figure 18:

Rear View of Engine
Object Number: 1659437 Size: LF
(1)Ignition Coil Module 4
(2)Ignition Coil Module 3
(3)Ignition Coil Module 2
(4)Camshaft Position (CMP) Actuator Solenoid-Intake
(5)Camshaft Position (CMP) Actuator Solenoid-Exhaust
(6)Ignition Coil Module 1
(7)Engine Harness
(8)Heated Oxygen Sensor (HO2S) 1
(9)Heated Oxygen Sensor (HO2S) 2
(10)Engine Coolant Temperature (ECT) Sensor
(11)Camshaft Position (CMP) Sensor (Exhaust)
(12)G108
(13)Camshaft Position (CMP) Sensor (Intake)
(14)Evaporative Emission (EVAP) Canister Purge Solenoid Valve
Figure 19:

Manifold Absolute Pressue (MAP) Sensor (L61)
Object Number: 1583757 Size: LF
(1)Manifold Absolute Pressue (MAP) Sensor
Figure 20:

Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor


Object Number: 1583679 Size: LF
(1)Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
Figure 21:

Manual Transmission (M86)
Object Number: 1659162 Size: LF
(1)Backup Lamp Switch
(2)Vehicle Speed Sensor
Figure 22:

G107
Object Number: 1546027 Size: LF
(1)Transmission Case
(2)X100
(3)G107
(4)Engine Harness
Figure 23:

Transmission Control Module (TCM)
Object Number: 1748304 Size: MF
(1)Transmission Control Module (TCM)
Figure 24:

Front of the Engine (L61) (1 of 2)
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
(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
(13)Intake Manifold
Figure 25:

Front of the Engine (L61) (2 of 2)
Object Number: 1751287 Size: LF
(1)Throttle Actuator Control (TAC) Module
(2)Evaporative Emission (EVAP) Canister Purge Solenoid
(3)Engine Oil Pressure (EOP) Switch
(4)Crankshaft Position (CKP) Sensor
(5)Knock Sensor (KS)
(6)Starter
(7)Starter Solenoid
Figure 26:

Left Side View of Engine
Object Number: 1751294 Size: LF
(1)Ignition Coil Module 1
(2)Ignition Coil Module 2
(3)Ignition Coil Module 3
(4)Ignition Coil Module 4
(5)Fuel Rail
(6)Fuel Injector 1
(7)Fuel Injector 2
(8)Fuel Injector 3
(9)Fuel Injector 4
(10)Throttle Actuator Control (TAC) Module