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

RUN/CRANK and PWR/TRN Relays


Object Number: 1913426  Size: FS
Master Electrical Component List
Power Mode Description and Operation
Control Module References
ACCESSORY and RUN Relays
Figure 2:

ACCESSORY and RUN Relays


Object Number: 1913429  Size: FS
Master Electrical Component List
Power Mode Description and Operation
Control Module References
RUN/CRANK and PWR/TRN Relays