Upfitter Provision Schematics

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Mobile Radio Power Circuit Schematic (9L4)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Roof Beacon Wiring Circuit Schematic (TRW)

Courtesy of GENERAL MOTORS CORP.

Fig 3: Emergency Vehicle Wiring Circuit Schematic (5Y0)

Courtesy of GENERAL MOTORS CORP.

Fig 4: Wrecker Wiring Circuit Schematic (5X7)

Courtesy of GENERAL MOTORS CORP.