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

Front Engine Compartment


Object Number: 1873502  Size: LF
(1)Transmission Control Module (TCM)
(2)Engine Control Module (ECM)
(3)Battery
(4)Fuse Block - Underhood
(5)Starter Generator Control Module (SGCM)
(6)Pump Driver
(7)Starter Generator Control Module (SGCM) Bracket
(8)Transmission Pump
(9)Starter Generator
Figure 2:

Front of Engine - LAT


Object Number: 1873410  Size: LF
(1)Throttle Actuator Control (TAC) Module
(2)Transmission Pump
(3)Crankshaft Position (CKP) Sensor
(4)Engine Oil Pressure (EOP) Switch
(5)Starter
(6)Starter Generator Control Module (SGCM) Cooling Pump
(7)Knock Sensor (KS)
Figure 3:

Rear of Engine (LAT)


Object Number: 1873401  Size: LF
(1)Evaporative Emission (EVAP) Canister Purge Solenoid
(2)Heated Oxygen Sensor (HO2S) 1
(3)Vehicle Speed Sensor (VSS)
(4)Heated Oxygen Sensor (HO2S) 2
(5)Starter
(6)Engine Coolant Temperature (ECT) Sensor
(7)Park/Neutral Position (PNP) Switch
(8)Heater Coolant Pump