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

LR of the Engine Compartment


Object Number: 1360118  Size: LF
(1)G104
(2)Starter
(3)Generator Positive Voltage Connector
(4)Battery
(5)G100
(6)Fuse Block-Underhood
(7)Ring Terminal Battery
(8)Ring Terminal Generator
(9)Battery Positive Terminal
(10)Generator
Figure 2:

Engine Compartment (2.8L)


Object Number: 1333135  Size: LF
(1)Powertrain Control Module (PCM) C2
(2)Powertrain Control Module (PCM) C3
(3)Throttle Body
(4)Manifold Absolute Pressure (MAP) Sensor
(5)Evaporative Emission (EVAP) Canister Purge Solenoid
(6) Knock Sensor (KS)
(7)Generator
(8)Crankshaft Position (CKP) Sensor
(9)C105 (4WD) or C106 (2WD) (Engine Harness to Body Harness)
(10)Fuse Block - Underhood C2
(11)A/C Compressor Clutch (C60)
(12)G101
(13)G103
(14)G102
(15)Engine Oil Pressure (EOP) Sensor
(16)Camshaft Position (CMP) Sensor
(17)C100 (4WD) (Engine Harness to Front Axle Jumper Harness)
(18)Camshaft Position (CMP) Actuator Solenoid - Bank 1 Exhaust
(19)Intake Air Temperature (IAT)/Mass Air Flow (MAF) Sensor
Figure 3:

Engine Compartment (3.5L)


Object Number: 1334046  Size: LF
(1)Powertrain Control Module (PCM) C2
(2)Powertrain Control Module (PCM) C3
(3)Throttle Body
(4)Manifold Absolute Pressure (MAP) Sensor
(5)Evaporative Emission (EVAP) Canister Purge Solenoid
(6) Knock Sensor (KS) 2
(7)Generator
(8)C105 (4WD) or C106 (2WD) (Engine Harness to Body Harness)
(9)Fuse Block - Underhood C2
(10)Camshaft Position (CMP) Sensor 2
(11)Crankshaft Position (CKP) Sensor
(12)A/C Compressor Clutch
(13)Knock Sensor (KS) 1
(14)G101
(15)G103
(16)G102
(17)Engine Oil Pressure (EOP) Sensor
(18)Camshaft Position Sensor 1
(19)C100 (4WD) (Engine Harness to Front Axle Jumper Harness)
(20)Camshaft Position (CMP) Actuator Solenoid - Bank 1 Exhaust
(21)Intake Air Temperature (IAT)/Mass Air Flow (MAF) Sensor
Figure 4:

Left and Right Sides of Engine Compartment


Object Number: 1332665  Size: LF
(1)Wheel Speed Sensor (WSS) - LF
(2)Brake Fluid Level Switch
(3)Windshield Wiper Motor
(4)Pass-through Grommet
(5)Electronic Brake Control Module (EBCM)
(6)Splice Pack SP105/G105
(7)C102 (Body Harness to Chassis Harness)
(8)C105 (4WD) or C106 (2WD) (Engine Harness to Body Harness)
(9)Fuse Block - Underhood C4
(10)Fuse Block - Underhood C5
(11)Fuse Block - Underhood C7
(12)Fuse Block - Underhood C6
(13)C104 (Forward Lamp Harness to Body Harness) and C103 (Forward Lamp Harness to Body Harness)
(14)Splice Pack SP106/G106
(15)Wheel Speed Sensor (WSS) - RF
(16)Powertrain Control Module (PCM) C1
(17)Windshield Washer Fluid Pump
(18)Pass-through Grommet
(19)A/C Refrigerant Pressure Sensor
Figure 5:

Passenger Compartment (Regular Cab)


Object Number: 1332342  Size: LF
(1)Body Control Module (BCM) C1
(2)C201 (I/P Harness to Body Harness)
(3)G301
(4)G302
(5)Cargo Lamp/Center High Mounted Stop Lamp (CHMSL)
(6)Door Jamb Switch - Front Passenger
(7)C313 (Body Harness to Passenger Seat Harness)
(8)Seat Belt Pretensioner - RF
(9)Inflatable Restraint Sensing and Diagnostic Module (SDM)
(10)Transfer Case Shift Control Module
(11)C314 (Body Harness to Driver Seat Harness)
(12)G Sensor
(13)Seat Belt Pretensioner - LF
(14)Door Jamb Switch - Driver
(15)G300
(16)Stop Lamp Switch
(17)TCC Brake/Cruise Release Switch
(18)Park Brake Switch
(19)S303
(20)Clutch Switch
(21)Clutch Start Switch
(22)C208 (I/P Harness to Body Harness)
(23)C202 (Driver Door Harness to Body Harness)
(24)C209 (Body Harness to Driver Door Harness)
(25)C200 (I/P Harness to Body Harness)
(26)C275 (Body Harness to Steering Wheel Harness)
(27)Inflatable Restraint Roof Rail Module - Left
(28)Accelerator Pedal Position (APP) Sensor
(29)C310 (Dome Lamp Harness to Body Harness)
(30)C210 and C211 (A31) (Body Harness to Passenger Door Harness)
(31)Inflatable Restraint Roof Rail Module - Right
(32)Inside Rearview Mirror
Figure 6:

Passenger Compartment (Extended Cab)


Object Number: 1390332  Size: LF
(1)C310 (Dome Lamp Harness to Body Harness)
(2)C201 (I/P Harness to Body Harness)
(3)G301
(4)G302
(5)Inflatable Restraint Sensing and Diagnostic Module (SDM)
(6)C313 (Body Harness to Passenger Seat Harness)
(7)C317 (Body Harness to RR Passenger Door Harness)
(8)C312 (Body Harness to RR Passenger Door Harness)
(9)Cargo Lamp/Center High Mounted Stop Lamp (CHMSL)
(10)C316 (Body Harness to LR Passenger Door Harness)
(11)C311 (Body Harness to LR Passenger Door Harness)
(12)C314 (Body Harness to Driver Seat Harness)
(13)Transfer Case Shift Control Module C1
(14)Transfer Case Shift Control Module C2
(15)G Sensor
(16)G300
(17)Accelerator Pedal Position (APP) Sensor
(18)S102
(19)S100
(20)Stop Lamp Switch
(21)TCC Brake/Cruise Release Switch
(22)Park Brake Switch
(23)Clutch Switch
(24)Inflatable Restraint Roof Rail Module - Right
(25)C211 (A31) (Body Harness to Passenger Door Harness)
(26)C210 (A31) (Body Harness to Passenger Door Harness)
(27)C200 (I/P Harness to Body Harness)
(28)C275 (Body Harness to Steering Wheel Harness)
(29)Clutch Start Switch
(30)Body Control Module (BCM) C1
(31)C209 (Body Harness to Driver Door Harness)
(32)C202 (Driver Door Harness to Body Harness)
(33)Inside Rearview Mirror
Figure 7:

Passenger Compartment (Crew Cab)


Object Number: 1332757  Size: LF
(1)Body Control Module (BCM) C1
(2)C201 (I/P Harness to Body Harness)
(3)G301
(4)G302
(5)Inflatable Restraint Sensing and Diagnostic Module (SDM)
(6)C317 (A31) or C317 (w/oA31) (Body Harness to RR Passenger Door Harness)
(7)Cargo Lamp/Center High Mounted Stop Lamp (CHMSL)
(8)Door Jamb Switch - Front Passenger
(9)Seat Belt Pretensioner - RF
(10)Door Jamb Switch - RR
(11)C313 (Body Harness to Passenger Seat Harness)
(12)C316 (A31) or C316 (w/oA31) (Body Harness to LR Passenger Door Harness)
(13)C314 (Body Harness to Driver Seat Harness)
(14)Seat Belt Pretensioner - LF
(15)Door Jamb Switch - LR
(16)Door Jamb Switch - Driver
(17)Transfer Case Shift Control Module C1, C2
(18)G Sensor
(19)G300
(20)Stop Lamp Switch
(21)TCC Brake/Cruise Release Switch
(22)Park Brake Switch
(23)S303
(24)Clutch Switch
(25)Clutch Start Switch
(26)C208 (I/P Harness to Body Harness)
(27)C202 (Driver Door Harness to Body Harness)
(28)C209 (Body Harness to Driver Door Harness)
(29)C200 (I/P Harness to Body Harness)
(30)C275 (Body Harness to Steering Wheel Harness)
(31)Inflatable Restraint Roof Rail Module - Left
(32)Accelerator Pedal Position (APP) Sensor
(33)C310 (Dome Lamp Harness to Body Harness)
(34)C210 and C211 (A31) (Body Harness to Passenger Door Harness)
(35)Inflatable Restraint Roof Rail Module - Right
(36)Inside Rearview Mirror
Figure 8:

Left Side of I/P


Object Number: 1358595  Size: LF
(1)C275 (Body Harness to Steering Wheel Harness)
(2)A/T Shift Lock Control Solenoid Connector
(3)Body Harness
(4)Accelerator Pedal Position (APP) Sensor Connector
(5)Accelerator Pedal
(6)Accelerator Pedal Position (APP) Sensor
(7)A/T Shift Lock Control Solenoid
(8)Ignition Lock Cylinder Case (Ignition Switch Location)