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

(AL2) Front Seats


Object Number: 492390  Size: FS
Power Seat Systems Components
Power Lumbar Circuit Description w/o A45
(AL2) Rear Seats
NAV Fuse and POWER SEAT Circuit Breaker
G302 - LH Front Seat
G302 - RH Front Seat
G302 - RH Front Seat
Figure 2:

(AL2) Rear Seats


Object Number: 492379  Size: FS
Power Seat Systems Components
Power Lumbar Circuit Description w/o A45
(AC9) Left Adaptive Seat
(AL2) Front Seats
G302 - LH Front Seat
G302 - RH Front Seat
G302 - RH Front Seat
Figure 3:

(AC9) Left Adaptive Seat


Object Number: 492386  Size: FS
Power Seat Systems Components
Power Lumbar Circuit Description with AC9
(AC9) Right Adaptive Seat
(AL2) Rear Seats
MEM T&T, RRLUM/ANT, and HTDST LF Fuses
(AC9) Right Adaptive Seat
MEM T&T, RRLUM/ANT, and HTDST LF Fuses
(AC9) Right Adaptive Seat
IGN 3 Fuse
MEM T&T, RRLUM/ANT, and HTDST LF Fuses
Handling ESD Sensitive Parts Notice
G302 - LH Front Seat
G302 - LH Front Seat
Figure 4:

(AC9) Right Adaptive Seat


Object Number: 492384  Size: FS
Power Seat Systems Components
Power Lumbar Circuit Description with AC9
(AM3) Left Seat Lumbar Massage
(AC9) Left Adaptive Seat
(AC9) Left Adaptive Seat
(AC9) Left Adaptive Seat
IGN 3 Fuse
Handling ESD Sensitive Parts Notice
G302 - RH Front Seat
G302 - RH Front Seat
Figure 5:

(AM3) Left Seat Lumbar Massage


Object Number: 492342  Size: FS
Power Seat Systems Components
Power Lumbar Circuit Description with AM3
(AM3) Right Seat Lumbar Massage
(AC9) Right Adaptive Seat
NAV Fuse and POWER SEAT Circuit Breaker
NAV Fuse and POWER SEAT Circuit Breaker
G302 - LH Front Seat
G302 - LH Front Seat
Handling ESD Sensitive Parts Notice
Figure 6:

(AM3) Right Seat Lumbar Massage


Object Number: 492346  Size: FS
Power Seat Systems Components
Power Lumbar Circuit Description with AM3
(A45 with AL2) PWR, GND, Switch, Motors, Sensors, and MSM
(AM3) Left Seat Lumbar Massage
NAV Fuse and POWER SEAT Circuit Breaker
NAV Fuse and POWER SEAT Circuit Breaker
G302 - RH Front Seat
G302 - RH Front Seat
Handling ESD Sensitive Parts Notice
Figure 7:

(A45 with AL2) PWR, GND, Switch, Motors, Sensors, and MSM


Object Number: 492374  Size: FS
Power Seat Systems Components
Power Lumbar Circuit Description with A45
(A45 with AM3) PWR, GND, Switch, Massage Module and MSM
(AM3) Right Seat Lumbar Massage
Handling ESD Sensitive Parts Notice
MEM T&T, RRLUM/ANT, and HTDST LF Fuses
MEM T&T, RRLUM/ANT, and HTDST LF Fuses
Memory Seats Schematics
Memory Seats Schematics
Handling ESD Sensitive Parts Notice
Figure 8:

(A45 with AM3) PWR, GND, Switch, Massage Module and MSM


Object Number: 492323  Size: FS
Power Seat Systems Components
Power Lumbar Circuit Description with A45
(A45 with AM3) MSM, Massage Module, Motors and Position Sensors
(A45 with AL2) PWR, GND, Switch, Motors, Sensors, and MSM
NAV Fuse and POWER SEAT Circuit Breaker
MEM T&T, RRLUM/ANT, and HTDST LF Fuses
MEM T&T, RRLUM/ANT, and HTDST LF Fuses
NAV Fuse and POWER SEAT Circuit Breaker
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
G302 - LH Front Seat
G302 - LH Front Seat
Figure 9:

(A45 with AM3) MSM, Massage Module, Motors and Position Sensors


Object Number: 492338  Size: FS
Power Seat Systems Components
Power Lumbar Circuit Description with A45
(A45 with AM3) PWR, GND, Switch, Massage Module and MSM
Handling ESD Sensitive Parts Notice
Memory Seats Schematics
Handling ESD Sensitive Parts Notice