WARNING: This page is about a different car, the 2001 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: 3.4L VIN E, Engine Performance Circuits (1 of 4)
Fig 2: 3.4L VIN E, Engine Performance Circuits (2 of 4)
Fig 3: 3.4L VIN E, Engine Performance Circuits (3 of 4)
Fig 4: 3.4L VIN E, Engine Performance Circuits (4 of 4)