GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2003 🢒 DeVille 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T80-E 🢒 Power Seat Component Views
Figure 1:

Left Front Seat Cushion
Object Number: 525044 Size: LF
(1)Heated Seat Cushion Element, Heated Seat Back Element (Passenger Similar)
Figure 2:

Left Front of the Passenger Compartment, Under the Left Front Seat
Object Number: 594423 Size: LF
(1)Memory Seat Module (MSM)
(2)Climate Control Seat Module -- Driver, Passenger Similar
Figure 3:

Passenger Compartment, in the Driver Seat
Object Number: 900123 Size: LF
(1)Seat Belt Retractor- Driver (Passenger Similar)
(2)C324 (C326 Similar)
(3)Seat Rear Vertical Position Sensor- Driver
(4)Seat Rear Vertical Motor- Driver (Front Passenger Similar)
(5)Seat Front Vertical Position Sensor- Driver
(6)Seat Front Vertical Motor- Driver (Front Passenger Similar)
(7)Seat Horizontal Motor- Driver (Front Passenger Similar)
(8)Seat Horizontal Position Sensor- Driver
(9)C323 and C314 (C325 Similar)
(10)Seat Recline Position Sensor- Driver
(11)Seat Recline Motor- Driver (Front Passenger Similar)
(12)Seat Massaging Power Lumbar Assembly- Driver (Front Passenger Similar)
Figure 4:

Left Front Seat, on the Left Side of the Seat Cushion
Object Number: 524977 Size: LF
(1)Seat Adjuster Switch and Seat Lumbar Switch -- Driver, Passenger Similar
(2)Seat Belt Retractor --LF, RF Similar
Figure 5:

LH Seat Connectors
Object Number: 492643 Size: MF
(1)C302
(2)Inflatable Restraint Connector
Figure 6:

Left Front Door, on the Door Trim Panel
Object Number: 534708 Size: LF
(1)Driver Door Switch Assembly (DDSA), Passenger Similar
(2)Door Lock Switch -- Driver, Passenger Similar
(3)Speaker -- LF Door, RF Door Similar
(4)Courtesy Lamp -- Left Front Door, Right Front Door Similar
(5)Heated Seat Switch -- Driver, Passenger Similar
(6)Memory/Personalization Function Switch
Figure 7:

Left Front of the Passenger Compartment, Under the Left Front Seat
Object Number: 592166 Size: LF
(1)Seat Lumbar Horizontal Position Sensor -- Driver
(2)Seat Lumbar Horizontal Motor -- Driver, Front Passenger Similar
(3)Seat Lumbar Vertical Motor -- Driver, Front Passenger Similar
(4)Seat Massage Module -- Driver, Front Passenger Similar
(5)Seat Lumbar Vertical Position Sensor -- Driver, Front Passenger Similar
Figure 8:

Center Rear of the Passenger Compartment, in the Rear Seat Back
Object Number: 525046 Size: LF
(1)Heated Seat Module --RR
(2)Seat Belt Control Module
(3)Heated Seat Module -- LR
Figure 9:

Left Side of the Rear Seat Back
Object Number: 524887 Size: LF
(1)Heated Seat Back Element, (RR Similar)
(2)S333
(3)C306
(4)S334
Figure 10:

Rear of Passenger Compartment, behind the Rear Seat Back
Object Number: 893769 Size: MF
(1)Seat Lumbar Horizontal Motor- RR
(2)Seat Lumbar Vertical Motor- RR
(3)Seat Lumbar Horizontal Motor- LR
(4)Seat Lumbar Vertical Motor- LR
Figure 11:

Front of the Left Rear Door
Object Number: 524980 Size: LF
(1)Door Lock Switch -- LR, RR Similar
(2)Cigar Lighter -- LR, RR Similar
(3)Speaker -- LR Door, RR Similar
(4)Door Courtesy Lamp -- LR Door, RR Similar
(5)Seat Lumbar Switch -- LR, RR Similar
(6)Heated Seat Switch -- LR, RR Similar
(7)Window Switch -- LR, RR Similar