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

Cooling Fan Harness Routing View - 3.1L


Object Number: 588000  Size: LF
(1)C105
(2)Cooling Fan - Right
(3)Cooling Fan - Left
Figure 2:

Cooling Fan Harness Routing View - 3.8L


Object Number: 573542  Size: LF
(1)Cooling Fan - Left
(2)C105
(3)Cooling Fan - Right
Figure 3:

Left Side of Engine Radiator


Object Number: 587997  Size: LF
(1)Coolant Level Module