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

Power Seat (AH8)


Object Number: 1471177  Size: FS
Master Electrical Component List
Power Seats System Description and Operation
Control Module References
Heated Seat - Passenger (KA1)
Left Rear Fuse Block B+ Bus
Left Rear Fuse Block - SEAT Circuit Breaker, TRUNK Relay/Fuse, AMP, AUDIO, DRIVER DR MOD, and REAR DR MOD Fuse
G307
Figure 2:

Heated Seat (KA1)


Object Number: 1471178  Size: FS
Master Electrical Component List
Heated Seats Description and Operation
Control Module References
Power Lumbar - Passenger (AL2)
Power Seat - Passenger (AH8)
Class 2 Serial Data Bus (LHD) - 2 of 2
Right Rear Fuse Block B+ Bus
Left Rear Fuse Block B+ Bus
Left Rear Fuse Block - IGN 3 Relay, L FRT HTD SEAT MOD, MEM/ADAPT SEAT, CCP, HDLP LEVELING, and IGN 3 Fuses
Left Rear Fuse Block - IGN 3 Relay, L FRT HTD SEAT MOD, MEM/ADAPT SEAT, CCP, HDLP LEVELING, and IGN 3 Fuses
G307
G402 - 2 of 2
Figure 3:

Power Lumbar (AL2)


Object Number: 1471179  Size: FS
Master Electrical Component List
Power Seats System Description and Operation
Control Module References
Heated Seat - Passenger (KA1)
Left Rear Fuse Block - SEAT Circuit Breaker, TRUNK Relay/Fuse, AMP, AUDIO, DRIVER DR MOD, and REAR DR MOD Fuse
Left Rear Fuse Block B+ Bus
G307