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

Air Suspension Sub-System Components


Object Number: 856216  Size: LF
(1)Air Suspension Inlet Valve-LR
(2)Air Suspension Inlet Valve-RR
(3)Compressor Connector
(4)Air Suspension Air Dryer
(5)Air Suspension Compressor
(6)Air Suspension Module
(7)Air Suspension Exhaust Valve Connector
(8)C450
(9)C451
(10)Air Suspension Inlet Valve Connector-LR/RR
(11)Air Suspension Pressure Sensor
(12)Air Suspension Exhaust Valve
Figure 2:

Air Suspension Inflator Switch


Object Number: 828266  Size: MF
(1)Door Lock Switch-Rear
(2)Air Suspension Inflator Switch
Figure 3:

Air Suspension Inflator Switch Connector


Object Number: 830015  Size: MF
(1)RR Body Passthrough Grommet
(2)Air Suspension Inflator Switch Pigtail Harness
(3)Air Suspension Inflator Switch Connector
Figure 4:

Air Suspension Sensor-LR (RR Similar)


Object Number: 828258  Size: MF
(1)Air Suspension Sensor-LR
(2)Left Frame Rail
Figure 5:

Electronically Controlled Air Suspension Relay


Object Number: 828177  Size: MF
(1)S304
(2)G300
(3)Chassis Harness
(4)Electronically Controlled Air Suspension Relay
Figure 6:

Ride Height Switch


Object Number: 819761  Size: LF
(1)IP Compartment
(2)Traction Control Switch
(3)Tow/Haul Switch
(4)Ride Height Switch