FCA US GRAND WAGONEER 2022 Owner's Manual page 211

Integrated Trailer Brake Module (ITBM) —
If Equipped
Your vehicle may have an ITBM for Electric and
Electric Over Hydraulic (EOH) trailer brakes. The
controller is located below the instrument panel on
the right side of the steering column.
NOTE:
This module has been designed and verified with
electric trailer brakes and EOH systems. Some
previous EOH systems may not be compatible with
ITBM.
Integrated Trailer Brake Module (ITBM)
1 — GAIN Adjustment Button
2 — GAIN Adjustment Button
3 — Manual Brake Control Lever
The user interface consists of the following:
Manual Brake Control Lever
Slide the manual brake control lever to the left to
activate power to the trailer's electric brakes
independent of the tow vehicle's brakes. If the
manual brake control lever is activated while the
brake is also applied, the greater of the two inputs
determines the power sent to the trailer brakes.
The trailer and the vehicle's brake lamps will come
on when either vehicle braking or manual trailer
brakes are applied.
Trailer Brake Status Indicator Light
This light indicates the trailer electrical connection
status.
If no electrical connection is detected after the
ignition is turned on, pushing the GAIN adjustment
button or sliding the manual brake control lever will
display the GAIN setting for 10 seconds and the
Trailer Brake Status Indicator Light will not be
displayed.
If a fault is detected in the trailer wiring or the ITBM,
the Trailer Brake Status Indicator Light will flash.
STARTING AND OPERATING
GAIN Adjustment Buttons (+/-)
Pushing these buttons will adjust the brake control
power output to the trailer brakes in
0.5 increments. The GAIN setting can be increased
to a maximum of 10 or decreased to a minimum of
0 (no trailer braking).
GAIN
The GAIN setting is used to set the trailer brake
control for the specific towing condition and should
be changed as towing conditions change. Changes
to towing conditions include trailer load, vehicle
load, road conditions and weather.
Adjusting GAIN
NOTE:
This should only be performed in a traffic free
environment at speeds of approximately
20–25 mph (30–40 km/h).
1. Make sure the trailer brakes are in good
working condition, functioning normally and
properly adjusted. See a trailer dealer if
necessary.
2. Hook up the trailer and make the electrical
connections according to the trailer
manufacturer's instructions.
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