F 250 4WD Super Duty V8-5.4L (2009)
The upfitter switches are located in the instrument panel center finish panel under the climate control assembly. The upfitter switches have individually
lighted indicators that illuminate when the switch is in the ON position (the indicator lights for the individual upfitter switches are not controlled by the
headlamp switch). The backlighting for the upfitter switches is adjustable and is controlled by the dimmer switch.
The upfitter system switches are used to control relays which switch high-current loads. The upfitter switches are not designed to carry any significant
loads. They are designed to allow the driver to manually close the relay coil circuit and provide power to added options. The upfitter relays are located
above the glove box. The output circuits of the upfitter relays go to the interior of the vehicle and are blunt cut. The blunt cut ends are located on the
driver side next to the parking brake bracket, and are accessed through the opening in the instrument panel when the instrument panel steering column
cover is removed.
The 4 upfitter system switches control:
-
1 fused (10A), voltage at all times, relay.
-
1 fused (15A), voltage at all times, relay.
-
2 fused (30A), voltage at all times, relays.
