Ford 2011 F-550 v.3 Manuel d'utilisateur télécharger pdf (Page 254)

to the trailer wiring; consult your trailer dealer for assistance. This can

be a short to ground (i.e., chaffed wire) or a short to voltage (i.e., pulled

pin on trailer emergency break-away battery) or trailer brakes drawing

too much current.

Note:

Your TBC can be diagnosed by your authorized dealer to determine

exactly which trailer fault has occurred; however, if the fault is with the

trailer this diagnosis is not covered under your Ford warranty.

Points to Remember:

•

Remember to adjust gain setting before using the TBC for the first time.

• Readjust gain setting on the TBC (according to procedure above)

whenever road, weather and trailer or vehicle loading conditions

change from those that existed when the gain was initially set.

• The sliding lever on the TBC should be used only for manual

activation of trailer brakes to assist with proper adjustment of the

GAIN. Misuse, such as application during trailer sway, could cause

instability of trailer and/or tow vehicle.

•

Avoid towing in adverse weather conditions. The TBC does not provide

anti-lock control of the trailer wheels. Trailer wheels can lock up on

slippery surfaces, resulting in reduced stability of trailer and tow vehicle.

• The TBC is equipped with a feature which reduces output at vehicle

speeds below 11 mph (18 km/h) so trailer and vehicle braking is not

jerky or harsh. This feature is only available when applying the brakes

using the vehicles brake pedal, not the TBC.

• The TBC interacts with the brake system of the vehicle, including

ABS, in order to reduce the likelihood of trailer wheel lock-up;

therefore, if these systems are not functioning properly, the TBC may

not function at full performance.

• Your vehicle’s brake system and the trailer brake system work

independently of each other; changing the GAIN setting on the TBC

does not affect the operation of your vehicle’s brakes whether a trailer

is attached or not.

• When the vehicle is turned off, the TBC output is disabled and the

display is shut down; turning the ignition from off to on awakens the

TBC module.

• The TBC is only a factory- or dealer-installed item; Ford is not

responsible for warranty or performance of the TBC due to misuse or

customer installation.

• Do not attempt removal of the TBC without consulting the

Workshop Manual; damage to the unit may result.

Tires, Wheels and Loading

254

2011 F-250/350/450/550 (f23)

Owners Guide, 3rd Printing

USA (fus)

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Ford 2011 F-550 v.3 Manuel d'utilisateur Page 254

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Ford 2011 F-550 v.3 Manuel d'utilisateur Page 254

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