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

Left Front Seat Back


Object Number: 492615  Size: MF
(1)Seat Lumbar Vertical Position Sensor - Driver
(2)Seat Lumbar Vertical Motor - Driver
(3)Seat Recline Motor - Driver
(4)S331
(5)S330
(6)Lumbar Horizontal Motor - Driver
(7)Lumbar Horizontal Position Sensor - Driver
Figure 2:

MSM and the Heated Seat Module


Object Number: 492633  Size: MF
(1)Memory Seat Module (MSM) C2
(2)Memory Seat Module (MSM)
(3)Memory Seat Module (MSM) C1
(4)Heated Seat Module
(5)Heated Seat Module C2
(6)Heated Seat Module C1
(7)Memory Seat Module (MSM) C3
Figure 3:

Left Front Seat Horizontal and Vertical Motors and Sensors


Object Number: 492636  Size: MF
(1)Seat Horizontal Position Sensor - Driver
(2)Seat Rear Vertical Position Sensor - Driver
(3)Seat Rear Vertical Motor - Driver
(4)Seat Front Vertical Motor - Driver
(5)Seat Horizontal Motor - Driver
(6)Seat Front Vertical Position Sensor - Driver
Figure 4:

Left Lumbar and Seat Switch


Object Number: 492640  Size: MF
(1)Seat Adjuster Switch - Driver
(2)Seat Lumbar Switch - Driver
Figure 5:

LH Seat Connectors


Object Number: 492643  Size: MF
(1)C302
(2)Inflatable Restraint Connector