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

Engine Coolant Temperature Indicator


Object Number: 641955  Size: FS
Cooling Fans
Cooling System Component Views
Cooling System Description and Operation
Class 2 Serial Data Line (LH Drive) (1 of 2)
G101 and G105
Figure 2:

Cooling Fans


Object Number: 642040  Size: FS
Engine Coolant Temperature Indicator
Cooling System Component Views
Cooling System Description and Operation
Power to Underhood Fuse Block
PCM Inputs/Outputs (1 of 2)
G104