Ford TRANSIT 2015 Owner's Manual page 169

The controller shows gain setting, output bar graph and the trailer connectivity
status in the information display as follows:
Message
Trailer Brake
Gain:
No Trailer
Trailer Brake
Gain:
Output:
Trailer Connected
Trailer Disconnected
Procedure for Adjusting the Gain Setting
The gain setting sets the trailer brake
controller for the specific towing condition.
You should change the setting as towing
conditions change. Changes to towing
conditions include trailer load, vehicle load,
road conditions and weather.
The gain should be set to provide the
maximum trailer braking assistance while
making sure the trailer wheels do not lock
when using the brakes. Locked trailer
wheels may lead to trailer instability.
Note: Only carry out this procedure in a
traffic-free environment at speeds of
approximately 20-25 mph (30-40 km/h).
Transit (TTH) Canada/United States of America, enUSA, Edition date: 03/2014, Third Printing
Towing
Action and Description
Displays the current gain setting during a given ignition cycle
and when adjusting the gain setting. This also displays if you
use the manual control lever or make gain adjustments with
no trailer connected.
Displays when you press your vehicle's brake pedal, or upon
use of the manual control lever. Bar indicators illuminate in
the information display to indicate the amount of power going
to the trailer brakes relative to the brake pedal or manual
control input. One bar indicates the least amount of output;
six bars indicate maximum output.
Displays when the system senses a correct trailer wiring
connection during a given ignition cycle. For example a trailer
with electric trailer brakes.
Displays when the system senses a trailer connection and
then a disconnection, either intentional or unintentional,
during a given ignition cycle, this is accompanied by a single
audible tone. It also displays if a vehicle or trailer-wiring fault
occurs causing the trailer to appear disconnected. This
message can also display if you use the manual control lever
without a trailer connected.
1.
2. Hook up the trailer and make the
3. Use the gain adjustment + and -
4. In a traffic-free environment, tow the
166
Make sure the trailer brakes are in good
working condition, functioning normally
and correctly adjusted. See a trailer
dealer if necessary.
electrical connections according to the
trailer manufacturer's instructions.
buttons to increase or decrease the
gain setting to the desired starting
point. A gain setting of six is a good
starting point for heavier loads.
trailer on a dry, level surface at a speed
of 20-25 mph (30-40 km/h) and slide
the manual control lever completely.