Pontiac 2000 Bonneville Owner's Manual page 347

L67 Engine Accessory Belt
The Supercharged 3800 V6 (L67) engine uses two
accessory drive belts. The inner belt drives the
generator, power steering pump, coolant pump and air
conditioning. The outer belt drives the supercharger.
Each belt has its own tensioner and idler pulley. See
"Maintenance Schedule" in the Index for when to check
the accessory drive belts and the supercharger oil level.
Have your dealer check the oil level in the supercharger.
6-72
1. Front Belt
2. Back Belt
A. Generator
B. Power Steering Pump
C. Crank
D. Supercharger
E. Coolant Pump
F. Air Conditioning