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

Center Floor Console


Object Number: 481489  Size: MF
(1)Shift Selector
(2)Shift Lock Diode
(3)Shift Lock Solenoid
Figure 2:

Relays


Object Number: 636748  Size: MF
(1)Fuse Block
(2)Shift Lock Control Relay
(3)A/C Condenser Fan Relay
(4)A/C Compressor Relay
(5)Horn Relay
(6)A/C Fuse, Blower Fuse