display FORD SUPER DUTY 2005 1.G Owner's Manual
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•If the electrical connection is lost, the indicator will flash red. If the
connection is lost while the vehicle is stationary, the indicator will turn
off after 30 seconds. If the connection is lost while the vehicle is
moving, the indicator will flash until the ignition is turned off, then on
again.
•If no electrical connection is detected after the ignition is turned on,
pressing a GAIN adjustment button will display the GAIN setting.
Sliding the manual control will display the GAIN setting, OUTPUT bar
graph and light the trailer indicator red.
3.GAIN setting display:Shows the current GAIN setting. This will
illuminate when a trailer is connected, flash if the trailer becomes
disconnected, or remain off if no trailer is connected.
4.OUTPUT bar graph:When the vehicle’s brake pedal is pushed, or
when the manual control is activated, green bar indicators will illuminate
to indicate the amount of power going to the trailer brakes relative to
the brake pedal or manual control input.
5.Manual control lever:Slide the control lever to the left to activate
power to the trailer’s electric brakes independent of the tow vehicle’s
brakes. If the manual control is activated while the brake is also applied
the greater of the two inputs determines the power sent to the trailer
brakes.
•Stop Lamps:Both the tow vehicle and the trailer brake lamps will be
illuminated in the event of a manual apply using the TBC manual
control lever, as well as with any activation of the vehicle brake pedal.
GAIN
The GAIN setting is used to set the TBC 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.
The GAIN should be set to provide the maximum trailer braking
assistance while ensuring the trailer wheels do not lock when braking.
Locked trailer wheels may lead to trailer instability.
Procedure for adjusting GAIN:
Note:This should only be performed in a traffic free environment.
1. Make sure the trailer brakes are in good working condition 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.
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3. When a trailer with electric brakes is plugged in, the trailer connection
indicator will illuminate green on the TBC and the GAIN setting display
will illuminate.
4. Use the GAIN adjustment (+/-) buttons to increase or decrease the
GAIN setting to the desired starting point. (A GAIN setting of 6.0 is a
good starting point for heavier loads.)
5. Tow the trailer on a dry, level surface at 25 mph (40 km/h) and
squeeze the manual control lever completely.
6. If the trailer wheels lock-up (indicated by squealing tires), reduce the
GAIN setting; if the wheels turn freely, increase the GAIN setting. Repeat
Steps 5 and 6 until the GAIN setting is at a point just below wheel
lock-up. If towing a heavier trailer wheel lockup may not be attainable
and the gain should be set as to achieve maximum braking force for the
specific towing conditions.
Explanation of instrument cluster messages:
The TBC interacts with the instrument cluster message center. These
messages, accompanied by a single chime, will be displayed when the
TBC determines a malfunction in the trailer connection, TBC system, or
in the trailer. These messages are listed below:
TRAILER DISCONNECTED (if equipped with message center) or
CHECK TRAILER (if equipped with mini message center):This
message is displayed when a trailer connection was determined and then
a disconnection, either intentionally or unintentionally, has been sensed
during a given ignition cycle. This message is also displayed during
manual activation without a trailer connected.
TBC FAULT: This message is displayed in response to faults sensed by
the TBC. In the event this message is seen, please take your vehicle to
an authorized Ford dealership for diagnosis and repair.
TRAILER FAULT: The TBC is capable of determining certain faults in
the trailer wiring/brake system. This message is displayed when one of
the following faults has occurred:
• Short circuit on the electric brake output wire: If the TRAILER
FAULT message is displayed with no trailer connected, the problem is
with the wiring from the TBC to the 7–pin connector in the bumper. If
the message is displayed with a trailer connected, the problem is
related to the trailer wiring; consult your trailer dealer for assistance.
• Trailer brake overload: The trailer brakes are drawing too much
current; consult your trailer dealer for assistance.
Note: Your TBC can be diagnosed by your authorized Ford dealership to
determine exactly which trailer fault has occurred; however, this
diagnosis is notcovered under your Ford warranty.
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Points to Remember:
•Brake System Interaction:The TBC interacts with the brake
system of the vehicle, including ABS. Therefore, if these systems are
not functioning properly the TBC may not function at full
performance.
•Ignition Off:When the vehicle is turned off, the TBC Output is
disabled and the display is shut down. Reactivation of the ignition
from OFF to RUN will awaken the TBC module.
•Factory Installed:The TBC is only a factory installed item. Ford is
not responsible for warranty or performance of the TBC due to misuse
or out-of-factory installation.
Trailer lamps
Trailer lamps are required on most towed vehicles. Make sure all running
lights, brake lights, turn signals and hazard lights are working. See your
dealer or trailer rental agency for proper instructions and equipment for
hooking up trailer lamps.
Using a step bumper (if equipped)
The rear bumper is equipped with an integral hitch and only requires a
ball with a one inch (25.4 mm) shank diameter. The bumper has a 5,000
lb. (2,270 kg) trailer weight and 500 lb. (227 kg) tongue weight capacity.
If it is necessary to relocate the trailer hitch ball position, a
frame-mounted trailer hitch must be installed.
Driving while you tow
When towing a trailer:
•Turn off the speed control. The speed control may shut off
automatically when you are towing on long, steep grades.
•Consult your local motor vehicle speed regulations for towing a trailer.
•To eliminate excessive transmission shifting, activate the Tow/Haul
feature. This will also assist in transmission cooling. (For additional
information, refer to theUnderstanding the positions of the 5–speed
automatic transmissionsection in this chapter.
•Anticipate stops and brake gradually.
•Do not exceed the GCWR rating or transmission damage may occur.
•Your vehicle may be equipped with a temporary or conventional spare
tire. If the spare tire is different in size (diameter and/or width), tread
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2005 F250/350/450/550(f23), Owners Guide (post-2002-fmt)(own2002),
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