GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra - 4WD 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Engine Controls Component Views
Figure 1:

Engine Harness Jumper to Engine POA Harness
Object Number: 1870628 Size: LF
(1)Battery - Right
(2)Fuse Holder - Underhood
(3)X127
(4)X108
(5)X107
(6)X123 (PTO)
(7)Fuse Block - Underhood
(8)X109
(9)Battery - Left (6A6/TP2)
(10)Engine Control Module (ECM)
(11)Transmission Control Module (TCM)
Figure 2:

Top of Engine
Object Number: 1870624 Size: LF
(1)Turbocharger Vane Position Control Solenoid Valve
(2)Glow Plug Control Module (GPCM)
(3)Fuel Rail Temperature (FRT) Sensor
(4)Intake Air Temperature (IAT) Sensor 2 Connector
(5)X128
(6)A/C Refrigerant Pressure Sensor (C67/CJ2)
(7)Generator - Left (K76)
(8)A/C Compressor Clutch (C67/CJ2)
(9)Engine Coolant Temperature (ECT) Sensor 1
(10)Engine Coolant Temperature (ECT) Sensor 2
(11)Camshaft Position (CMP) Sensor
(12)X127
(13)Generator - Right
(14)Manifold Absolute Pressure (MAP) Sensor
(15)Intake Air Heater (IAH) Module
(16)Intake Air Temperature (IAT) Sensor 2
(17)Fuel Heater
(18)A/C Low Pressure Switch (C67/CJ2)
Figure 3:

Left Side of Engine
Object Number: 1870630 Size: LF
(1)Fuel Injector 2
(2)Turbocharger Vane Position Sensor
(3)Fuel Injector 4
(4)Fuel Rail Pressure Sensor
(5)Fuel Injector 6
(6)Fuel Injector 8
(7)Glow Plug 8
(8)Glow Plug 6
(9)Engine Oil Pressure (EOP) Sensor
(10)Engine Oil Level Switch
(11)Glow Plug 4
(12)G106
(13)G102
(14)Glow Plug 2
Figure 4:

Right Side of Engine
Object Number: 1870626 Size: LF
(1)Fuel Injector 7
(2)Fuel Injector 5
(3)Fuel Injector 3
(4)Exhaust Gas Recirculation (EGR) Valve
(5)Fuel Injector 1
(6)Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
(7)Intake Air Valve
(8)Crankshaft Position (CKP) Sensor
(9)Glow Plug 1
(10)G103
(11)G105
(12)Block Heater
(13)Glow Plug 3
(14)Glow Plug 5
(15)Water In Fuel Sensor
(16)Starter
(17)Glow Plug 7
Figure 5:

Pedal Assemblies (JF4)
Object Number: 1739407 Size: LF
(1)Electronic Adjustable Pedal Assembly (JF4)
(2)Stop Lamp Switch
(3)Accelerator Pedal Position (APP) Sensor
Figure 6:

Fuel Level Sensors (Diesel)
Object Number: 1934346 Size: LF
(1)Fuel Level Sensor - Secondary
(2)Fuel Pump
(3)Fuel Level Sensor - Primary
Figure 7:

Right Side of Frame Rail - Long Wheelbase
Object Number: 1870632 Size: LF
(1)Rear Frame Assembly - 3/4 Ton
(2)Exhaust Gas Temperature (EGT) Sensor - 2
(3)Exhaust Gas Temperature (EGT) Sensor - 1
(4)DPF Differential Pressure Sensor
Figure 8:

Right Side of Frame Rail - Extended Cab
Object Number: 1870634 Size: LF
(1)Exhaust Gas Temperature (EGT) Sensor - 1
(2)Exhaust Gas Temperature (EGT) Sensor - 2
(3)DPF Differential Pressure Sensor
(4)Rear Frame Assembly - HD Extended Cab