FORD 2015 F-550 v.1 - Manual (Page 204)

gain setting is at a point just
below trailer wheel lock-up. If
towing a heavier trailer, trailer
wheel lock-up may not be
attainable even with the
maximum gain setting of 10.
Initial Output Setting
The trailer brake controller lets
you customize how aggressively
the trailer brakes engage. The
default value is set to “Light”. We
recommend this setting for the
majority of trailers. If you are using
an EOH trailer with a high setting
voltage, or if you prefer to feel
more brake feedback from the
trailer, then select “Medium” or
“Heavy”.
Trailer Brake Effort Setting
The trailer brake controller allows
the user to customize how
aggressively the trailer brakes
engage. The default value is "Low"
and is the recommended setting
for most trailers. If your trailer's
brakes require more initial voltage,
or if you prefer more aggressive
trailer braking, then select either
the "Medium" or the "High"
setting.
Information Display Warning
Messages
Note: An authorized dealer can
diagnose the trailer brake controller
to determine exactly which trailer
fault has occurred. However, your
Ford warranty does not cover this
diagnosis if the fault is with the
trailer.
TRAILER BRAKE MODULE
FAULT
Displays in response to faults
sensed by the trailer brake
controller, accompanied by a
single tone. If this message
appears, contact an authorized
dealer as soon as possible for
diagnosis and repair. The
controller may still function, but
with degraded performance.
WIRING FAULT ON TRAILER
Displays when there is a short
circuit on the electric brake output
wire.
If this message displays,
accompanied by a single tone,
with no trailer connected, the
problem is with your vehicle wiring
between the trailer brake
controller and the 7-pin connector
at the bumper.
201
Super Duty (), enUSA
Towing