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

Driver Door Module (DDM)


Object Number: 1550864  Size: MF
(1)Window Lockout Switch
(2)Passenger Window Switch
(3)Right Rear Window Switch
(4)Door Lock Switch - Driver
(5)Memory Seat Switch - Driver
(6)Heated Seat Switch - Driver
(7)Left Rear Window Switch
(8)Driver Window Switch
Figure 2:

Driver Seat Switches


Object Number: 1551565  Size: MF
(1)Lumbar Adjuster Switch - Driver
(2)Seat Adjuster Switch - Driver
(3)Seat Recliner Switch - Driver
Figure 3:

Under Driver Seat


Object Number: 1551333  Size: MF
(1)Seat Recline Motor - Driver
(2)Seat Position Sensor - Recline
(3)Inflatable Restraint Seat Position Sensor (SPS) - Left
(4)Seat Position Sensor - Horizontal
(5)Seat Horizontal Motor - Driver
(6)Seat Position Sensor - Front
(7)Seat Front Vertical Motor - Driver
(8)Seat Rear Vertical Motor - Driver
(9)Seat Position Sensor - Rear
Figure 4:

Beneath Driver Seat Cushion


Object Number: 1551334  Size: MF
(1)Memory Seat Module - Driver
(2)Heated Seat Element Connector - Driver Cushion
(3)Seat Belt Switch Connector - Driver
Figure 5:

Behind Driver Seat


Object Number: 1551335  Size: MF
(1)Lumbar Horizontal Motor - Driver
(2)Heated Seat Element Connector - Driver Back
(3)Lumbar Horizontal Position Sensor - Driver
(4)Seat Belt Pretensioner - Left
Figure 6:

Front Passenger Door Module (FPDM)


Object Number: 1551319  Size: MF
(1)Window Switch - Passenger
(2)Door Lock switch - Passenger
(3)Heated Seat Switch - Passenger
Figure 7:

Passenger Seat Switches


Object Number: 1551615  Size: MF
(1)Seat Recliner Switch - Passenger
(2)Seat Adjuster Switch - Passenger
(3)Lumbar Adjuster Switch - Passenger
Figure 8:

Under Passenger Seat


Object Number: 1551336  Size: MF
(1)Inflatable Restraint Seat Position Sensor (SPS) - Right
(2)Seat Recline Motor - Passenger
(3)Seat Rear Vertical Motor - Passenger
(4)Seat Front Vertical Motor - Passenger
(5)Seat Horizontal Motor - Passenger
Figure 9:

Beneath Passenger Seat Cushion


Object Number: 1551338  Size: MF
(1)Seat Belt Switch Connector - Passenger
(2)Inflatable Restraint Front Passenger Pressence System (PPS) Sensor
(3)Inflatable Restraint Front Passenger Pressence System (PPS) Module
(4)Heated Seat Element Connector - Passenger Cushion
Figure 10:

Behind Passenger Seat


Object Number: 1551340  Size: MF
(1)Lumbar Horizontal Motor - Passenger
(2)Seat Belt Pretensioner - Right
(3)Heated Seat Element Connector - Passenger Back