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E183395
When used properly, the trailer brake
controller assists in smooth and effective
trailer braking by powering the trailer's
electric or electric-over-hydraulic brakes
with a proportional output based on the
towing vehicle's brake pressure.
The controller user interface consists of
the following:
A: + and - (Gain adjustment buttons):
Pressing these buttons adjusts the
controller's power output to the trailer
brakes in 0.5 increments. You can increase
the gain setting to 10.0 (maximum trailer
braking) or decrease it to 0 (no trailer
braking). The gain setting displays in the
message center.
2023 E-Series (TE4) Canada/United States of America, enUSA, Edition date: 202111, First-Printing
Towing
The controller shows gain setting, output
bar graph, and trailer connectivity status
in the information display. They appear in
the information display as follows:
•
Trailer Brake Controller Gain (without
trailer connected): Shows the current
gain setting during a given ignition cycle
and when adjusting the gain. This also
displays if you use the manual control
lever or make gain adjustments with
no trailer connected.
•
Trailer Brake Controller Gain Output:
Displays when you push your vehicle's
brake pedal, or upon use of the manual
control. 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.
•
Trailer Connected: Displays when the
system senses a correct trailer wiring
connection (a trailer with electric trailer
brakes) during a given ignition cycle.
•
Trailer Disconnected: Displays,
accompanied by a single audible tone,
when the system senses a trailer
connection and then a disconnection,
either intentional or unintentional,
during a given ignition cycle. It also
displays if a truck or trailer-wiring fault
occurs causing the trailer to appear
disconnected. This message also
displays if you use the manual control
lever without a trailer connected.
B: Manual control lever: Slide the control
lever to the left to switch on the trailer's
electric brakes independent of the tow
vehicle's. See Procedure for Adjusting
Gain section for instructions on proper use
of this feature. If you use the manual
control while the brake is also applied, the
greater of the two inputs determines the
power sent to the trailer brakes.
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