Upfitter System
WARNING: This page is about a different car, the 2013 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
The upfitter system consists of upfitter relays and switches. The upfitter switches are located on the center console.
The upfitter switches each have an indicator that illuminates when the switch is in the ON position. The upfitter switches control relays for switching customer installed accessories on and off. The 4 upfitter switches can enable its corresponding relay only when the ignition is in run or accessory.
Upfitter relays 1 and 2 can support up to a 30A output each, upfitter relay 3 can support up to a 15A output and upfitter relay 4 can support up to a 10A output.