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

Instrument Panel, Center View


Object Number: 230778  Size: LF
(1)Hourmeter
(2)LOW AIR Pressure Indicator Lamp
(3)LOW AIR Pressure Indicator
(4)Ammeter
(5)Multifunction Alarm
(6)HAZARD name plate
(7)Right IP Trim Bezel
(8)Hazard Warning Switch
(9)Center IP Trim Bezel
(10)Automatic Transmission (A/T) Shift Control
(11)Left IP Trim Bezel
(12)Low Air Pressure Switch
Figure 2:

Manual Transmission Harness, Left Forward View


Object Number: 228367  Size: LF
(1)Backup Lamps Switch
(2)Vehicle Speed Sensor (VSS) (JE5)
(3)Vehicle Speed Sensor (VSS) (JE3)
Figure 3:

Left Side of IP


Object Number: 230785  Size: LF
(1)Daytime Running Lamp (DRL) Control Module
Figure 4:

IP Harness to Dash Panel, Right Forward View


Object Number: 230863  Size: LF
(1)Fuse/Relay Center
(2)Vehicle Speed Sensor (VSS) Buffer
(3)Fuse Block 2
(4)Fuse Block 1
(5)IP Fuse Block/Mini-Relay Center
(6)Hazard Lamps Flasher/Relay Center, Position 3
(7)Hazard Lamps Flasher/Relay Center, Position 2, Exhaust Brake Relay
(8)Hazard Lamps Flasher/Relay Center
(9)Hazard Lamps Flasher/Relay Center, Position 1
Figure 5:

Forward Lamps, Left Front View


Object Number: 228253  Size: LF
(1)Park and Turn Signal Lamp, Left Front (Right Side Similar)
(2)Headlamp, Left High/Low Beam (Right Side Similar)
(3)Engine Harness
(4)Forward Lamps Harness
Figure 6:

Steering Column, Left Forward View


Object Number: 227483  Size: LF
(1)Ignition Switch
(2)Headlamps Dimmer Switch
Figure 7:

Left Side of IP (Components), Forward View


Object Number: 220291  Size: MF
(1)IP Lamps Dimmer Switch
(2)Instrument Panel Cluster (IPC)
(3)Exhaust Brake Clutch Switch Jumper Plug
(4)Exhaust Brake Clutch Switch
(5)Upfitter Connector C212
(6)Upfitter Connector C212 Jumper
(7)Upfitter IP (+) Junction Block
(8)Daytime Running Lights (DRL) Control Module
(9)Driver Information Center (DIC)
(10)Headlamps Switch
Figure 8:

IP Harness to Dash Panel, Center Forward View


Object Number: 228594  Size: LF
(1)Stoplamps Switch (JE3)
Figure 9:

IP Harness to Instrument Panel (Typical), Center Front View


Object Number: 216172  Size: LF
(1)Hourmeter
(2)Automatic Transmission (A/T) Shift Control Connector (I/P Mounted)
(3)Multifunction Switch Connector
(4)Low Air Pressure Switch
(5)Ignition Switch C1
(6)Ignitions Switch C2
(7)Stoplamps Switch