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

Component Location - Information Sensors/Input Devices


Object Number: 440769  Size: LF
(1)MAP Sensor
(2)HO2S 2
(3)VSS M/T (part of speedometer)
(4)VSS A/T
(5)Transmission range switch (A/T only)
(6)ECT Sensor
(7)CMP Sensor
(8)HO2S 1
(9)CKP Sensor
(10)PSP Switch
(11)IAT Sensor
(12)TP Sensor
(13)A/C Compressor Control Module
(14)Diode Module (electrical load signal)
(15)Fuel Tank Pressure Sensor
(16)Fuel Level Sensor
Figure 2:

Component Location - PCM Controlled Devices


Object Number: 440764  Size: LF
(1)EVAP Canister Purge Valve
(2)Malfunction Indicator Lamp (MIL)
(3)Upshift Indicator Lamp (M/T only)
(4)Cooling Fan Control Relay
(5)Fuel Pump Relay
(6)Ignition Coil #1
(7)Fuel Injectors
(8)Ignition Coil #2
(9)EVAP Canister Vent Valve
(10)EVAP Tank Pressure Control Solenoid Valve
(11)IAC Valve
Figure 3:

Component Location - Other Components


Object Number: 440782  Size: LF
(1)Data Link Connector (DLC)
(2)Junction Block (fuse block)
(3)Main Relay
(4)Battery
(5)Duty Check Data Link Connector
(6)PCM
(7)EVAP Canister
Figure 4:

Ignition Coils, CMP Sensor and PCV Valve


Object Number: 445595  Size: SH
(1)CMP Sensor
(2)Ignition Coil #1 (Cylinders 1 and 4)
(3)Ignition Coil #2 (Cylinders 2 and 3)
(4)PCV Valve