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

Cooling Fans and Relays


Object Number: 863324  Size: FS
Master Electrical Component List
Cooling System Description and Operation
Coolant Level Switch
G103
Figure 2:

Coolant Level Switch


Object Number: 764969  Size: FS
Master Electrical Component List
Cooling System Description and Operation
Cooling Fans and Relays
G103
Serial Data Class 2