WARNING: This page is about a different car, the 2006 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Park Lamp Control, Front Marker, Park and Position Lamps - Wiring Diagram
Courtesy of GENERAL MOTORS CORP.
Fig 2: Rear License, Marker and Park Lamps - Wiring Diagram
Courtesy of GENERAL MOTORS CORP.
Fig 3: Hazard, Stop Lamps, and Turn Signal Inputs - Wiring Diagram
Courtesy of GENERAL MOTORS CORP.
Fig 4: Hazard, Stop Lamps, and Turn Signal Outputs - Wiring Diagram