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

Engine Compartment Components - Forward Lamp Harness


Object Number: 1535943  Size: LF
(1)Hood Ajar Switch (AP3 or AP8)
(2)Inflatable Restraint Front End Sensor - Left
(3)Horn - Left
(4)Cooling Fan - Left
(5)Cooling Fan - Right
(6)Ambient Air Temperature Sensor (UH8 or UH9)
(7)Horn - Right
(8)Inflatable Restraint Front End Sensor - Right
(9)Hood Ajar Switch Connector (AP3 or AP8)
Figure 2:

Engine Electrical Components


Object Number: 1542535  Size: LF
(1)Fuse Block - Underhood (Battery Stud)
(2)G102
(3)Battery Current Sensor
(4)Generator
(5)Automatic Transmission
(6)G113
(7)G115 (Battery Cable)
(8)G115
(9)Starter Motor
(10)Battery
Figure 3:

Front of Engine Components (LX9)


Object Number: 1536343  Size: LF
(1)Knock Sensor (KS) 1 (Early Production) or Knock Sensor (KS) 2 (Late Production)
(2)Engine Oil Pressure (EOP) Switch
(3)Starter Motor Solenoid
(4)Starter Motor
Figure 4:

Front of the Engine (LZ9)


Object Number: 1700522  Size: LF
(1)Intake Manifold Tuning (IMT) Solenoid Valve
(2)Evaporative Emission (EVAP) Canister Purge Solenoid Valve
(3)Throttle Actuator Control (TAC) Module
(4)Knock Sensor (KS) 1 (Early Production) or Knock Sensor (KS) 2 (Late Production)
(5)Starter Solenoid
(6)Starter Motor
(7)Engine Oil Pressure (EOP) Sensor
(8)Camshaft Position (CMP) Actuator Solenoid
(9)Camshaft Position (CMP) Sensor