GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2004 🢒 Bonneville 🢒 Engine 🢒 Engine Cooling 🢒 Engine Cooling Schematics
Figure 1:

Engine Cooling Fans and Relays
Object Number: 1262686 Size: FS
ABS, PCM BATT, andCool Fan 1 Fuse - 3.8L
G103
Serial Data Class 2
Serial Data Class 2
G103
Master Electrical Component List
Cooling System Description and Operation
Coolant Level Switch - 4.6L
Figure 2:

Coolant Level Switch - 4.6L
Object Number: 1338331 Size: FS
Serial Data Class 2
G103
Master Electrical Component List
Cooling System Description and Operation
Engine Cooling Fans, and Relays