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STARTING AND OPERATING
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
Integrated Trailer Brake Module (ITBM), the Trailer
Brake Status Indicator Light will flash.
Adjusting GAIN
NOTE:
This should only be performed in a traffic free envi
-
ronment 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 your trailer dealer if
necessary.
2. Hook up the trailer and make the electrical
connections according to the trailer
manufacturer's instructions.
3. When a trailer is plugged in with electric or
EOH brakes, the trailer connected message
should appear in the instrument cluster
display (if the connection is not recognized by
the ITBM, braking functions will not be
available), the GAIN setting will illuminate and
the correct type of trailer must be selected
from the instrument cluster display options.
4. Push the UP or DOWN button on the steering
wheel until “TRAILER TOW” appears on the
screen.
5. Push the RIGHT arrow on the steering wheel to
enter “TRAILER TOW”.
6. Push the UP or DOWN buttons until the Trailer
Brake Type appears on the screen.
7. Push the RIGHT arrow and then push the UP or
DOWN buttons until the proper Trailer Brake
Type appears on the screen.
8. In a traffic-free environment, tow the trailer on
a dry, level surface at a speed of 20–25 mph
(30–40 km/h) and squeeze the manual brake
control lever completely.
9. If the trailer wheels lockup (indicated by
squealing tires), reduce the GAIN setting;
if the trailer wheels turn freely, increase the
GAIN setting.
Repeat steps 8 and 9 until the GAIN setting is at a
point just below trailer wheel lockup. If towing a
heavier trailer, trailer wheel lockup may not be
attainable even with the maximum GAIN setting
of 10.
*The suggested selection may change depending on the customer preferences for braking performance. Condition of the trailer brakes, driving and road state
may also affect the selection.
Light Electric
Heavy Electric
Light EOH
Heavy EOH
Type of Trailer Brakes
Electric Trailer Brakes
Electric Trailer Brakes
Electric Over Hydraulic Trailer
Brakes
Electric Over Hydraulic Trailer
Brakes
Load
*Under 10,000 lb
*Above 10,000 lb
*Under 10,000 lb
*Above 10,000 lb
22_DT_OM_EN_USC_t.book Page 222
Содержание 1500 2022
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