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

Front Lights (WDA)


Object Number: 1863202  Size: LF
(1)Headlamp - Low Beam - Right
(2)Headlamp - High Beam - Right
(3)Headlamp - High Beam - Left
(4)Headlamp - Low Beam - Left
(5)Marker Lamp - Left Front
(6)Fog Lamp - Left
(7)Turn Signal Lamp - Left Front Lower/Turn Signal Lamp - Left Front Upper
(8)Turn Signal Lamp - Right Front Lower/Turn Signal Lamp - Right Front Upper
(9)Fog Lamp - Right
(10)Marker Lamp - Right Front
Figure 2:

Front Lights (Z88)


Object Number: 1863201  Size: LF
(1)Headlamp - Low Beam - Right
(2)Headlamp - High Beam - Right
(3)Turn Signal Lamp - Right Front
(4)Headlamp - High Beam - Left
(5)Turn Signal Lamp - Left Front
(6)Headlamp - Low Beam - Left
(7)Marker Lamp - Left Front
(8)Side Marker Lamp - Left Front
(9)Fog Lamp - Left
(10)Fog Lamp - Right
(11)Marker Lamp - Right Front
(12)Side Marker Lamp - Right Front
Figure 3:

Near the Steering Column


Object Number: 1863179  Size: LF
(1)Inside Air Temperature Sensor
(2)Steering Column
(3)Courtesy Lamp - Left Footwell
Figure 4:

Behind the I/P Compartment - 1 of 2


Object Number: 1863175  Size: LF
(1)I/P Trim
(2)HVAC Module Assembly
(3)Courtesy Lamp - Right Footwell
Figure 5:

I/P Compartment Components


Object Number: 1863151  Size: LF
(1)I/P Trim
(2)I/P Compartment Lamp
Figure 6:

I/P Components


Object Number: 1863162  Size: LF
(1)Headlamp Switch
(2)Instrument Panel Cluster (IPC)
(3)Radio
(4)Sunload Sensor (CJ2) / Ambient Light Sensor (C67)
(5)I/P Trim
(6)Inflatable Restraint PASSENGER AIR BAG ON/OFF Indicator
(7)HVAC Control Module
(8)Heated Seat Switch - Passenger (KA1)
(9)Auxiliary Power Outlet - I/P
(10)I/P Switch Assembly
(11)Heated Seat Switch - Driver (KA1)
(12)Hazard Switch and Driver Information Center (DIC) Switch (W49/Z88)
(13)Head Up Display (HUD) Switch (WDA with UV6))
(14)Driver Information Center (DIC) Switch (WDA with UH9)/Head Up Display (HUD) Switch (W49 or Z88 with UV6)
Figure 7:

Steering Column Components


Object Number: 1867859  Size: LF
(1)Tilt/Telescope Switch (N38)
(2)Turn Signal/Multifunction Switch
(3)Inflatable Restraint Steering Wheel Module Coil
(4)Theft Deterrent Control Module
(5)Steering Wheel Speed Position Sensor
(6)Ignition Lock Cylinder Control Actuator
(7)Ignition Switch
(8)Tilt Motor (N38)
(9)Telescope Actuator (N38)
Figure 8:

Below the Driver Side I/P


Object Number: 1863186  Size: LF
(1)Audio Amplifier (UQA or UQG or UQS)
(2)Body Control Module (BCM)
(3)Brake Pedal Position Sensor
(4)Accelerator Pedal Position (APP) Sensor
(5)G301
(6)Park Brake Switch
Figure 9:

Headliner Components


Object Number: 1863126  Size: LF
(1)Cargo Lamp
(2)Courtesy/Reading Lamp - Rear
(3)Infrared Module (U42 with C3U)
(4)Courtesy/Reading Lamp - Center (U42 with C3U)
(5)Digital Video Disc (DVD) Display (U42 with C3U)
(6)Cellular Microphone (UE1)
(7) Courtesy/Reading Lamp - Front
(8)Console Flood Lamp
(9)Garage Door Opener (UG1)
(10)Vanity Mirror Lamp - Right (DH6)
(11)Inside Rearview Mirror
(12)Vanity Mirror Lamp - Left (DH6)
(13)Digital Video Disc (DVD) Display (U42 without C3U)
(14)Courtesy/Reading Lamp - Center (without C3U)
(15)Infrared Module (U42 without C3U)
(16)Rear Parking Assist (RPA) Display (UD7)
(17)Remote Control Door Lock Receiver (RCDLR)
Figure 10:

Overhead Console Components (C3U)


Object Number: 1867858  Size: LF
(1)Courtesy/Reading Lamp - Front
(2)Sunroof Shade Switch (C3U)
(3)Console Flood Lamp
(4)Garage Door Opener (UG1)
(5)Sunroof Switch (C3U)
Figure 11:

Shifter Assembly


Object Number: 1867826  Size: LF
(1)Tap Up/Tap Down Switch
(2)PRNDL Lamp
(3)X341
(4)A/T Shift Lock Control Solenoid
(5)Ignition Lock Switch
Figure 12:

Driver Door


Object Number: 1863144  Size: LF
(1)Outside Rearview Mirror - Driver
(2)Memory Seat Switch (AG3)
(3)Driver Door Module (DDM) (AXC or AXE)
(4)Speaker - Left Front Door
(5)Inflatable Restraint Side Impact Sensing Modu,e (SISM) - Left Front
(6)Door Latch Assembly - Driver
(7)Window Motor - Driver
(8)Turn Signal Lamp (Part of Outside Rearview Mirror) (DNP/DS3)
Figure 13:

Passenger Door


Object Number: 1863143  Size: LF
(1)Outside Rearview Mirror - Passenger
(2)Turn Signal Lamp (Part of Outside Rearview Mirror) (DNP/DS3)
(3)Window Motor - Passenger
(4)Door Latch Assembly - Passenger
(5)Inflatable Restraint Side Impact Sensing Module (SISM) - Right Front
(6)Speaker - Right Front Door
(7)Window Switch - Passenger and Door Lock Switch Passenger (without AXC/AXE)/Passenger Door Module (PDM) (AXC/AXE)
Figure 14:

Liftgate Components


Object Number: 1863122  Size: LF
(1)Liftgate Object Sensor - Right (E61)
(2)Rear Window Defogger Grid
(3)Rear Window Wiper Motor
(4)Liftgate Object Sensor - Left (E61)
(5)Courtesy Lamp - Liftgate - Left
(6)Liftgate Switch - Interior (E61)
(7)Liftgate Latch Assembly
(8)Courtesy Lamp - Liftgate - Right
(9)Liftgate Switch - Exterior
Figure 15:

Rear of the Vehicle - Z88


Object Number: 1868276  Size: LF
(1)Center High Mounted Stop Lamp (CHMSL)
(2)Radio Antenna
(3)Rear Window Defogger Grid
(4)Back Up Lamp - Right
(5)Tail Lamp Assembly - Right
(6)Park Lamp - Right Rear
(7)Object Sensor - Right Rear Corner (UD7)
(8)Object Sensor - Right Rear Middle (UD7)
(9)License Lamp - Left/License Lamp - Right
(10)Object Sensor - Left Rear Middle (UD7)
(11)Object Sensor - Left Rear Corner (UD7)
(12)Park Lamp - Left Rear
(13)Tail Lamp Assembly - Left
(14)Back Up Lamp - Left
Figure 16:

Rear of the Vehicle (WDA)


Object Number: 1863125  Size: LF
(1)Backup Lamp - Left
(2)License Lamp - Left
(3)Radio Antenna
(4)Center High Mounted Stop Lamp (CHMSL)
(5)License Lamp - Right
(6)Backup Lamp - Right
(7)Marker Lamp - Right Rear
(8)Tail/Stop and Turn Signal Lamp - Right
(9)Object Sensor - Right Rear Corner (UD7)
(10)Object Sensor - Right Rear Middle (UD7)
(11)Object Sensor - Left Rear Middle (UD7)
(12)Object Sensor - Left Rear Corner (UD7)
(13)Tail/Stop and Turn Signal Lamp - Left
(14)Marker Lamp - Left Rear