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TowingExplanation of Information DisplayWarning MessagesNote: An authorized dealer can diagnosethe trailer brake controller to determineexactly which trailer fault has occurred.However, your Ford warranty does not coverthis diagnosis if the fault is with the trailer.TRAILER BRAKE MODULE FAULT:Displays in response to faults sensed bythe trailer brake controller, accompaniedby a single tone. If this message appears,contact an authorized dealer as soon aspossible for diagnosis and repair. Thecontroller may still function, butperformance may be degraded.WIRING FAULT ON TRAILER: Displayswhen there is a short circuit on the electricbrake output wire. If the WIRING FAULTON TRAILER message displays,accompanied by a single tone, with notrailer connected, the problem is with yourvehicle wiring between the trailer brakecontroller and the 7-pin connector at thebumper. If the message only displays witha trailer connected, the problem is with thetrailer wiring. Consult your trailer dealer forassistance. This can be a short to ground(such as a chaffed wire), short to voltage(such as a pulled pin on trailer emergencybreakaway battery) or the trailer brakesmay be drawing too much current.Points to RememberNote: Do not attempt removal of the trailerbrake controller without consulting theWorkshop Manual. Damage to the unit mayresult.• Adjust gain setting before using thetrailer brake controller for the first time.• Adjust gain setting, using the procedureabove, whenever road, weather andtrailer or vehicle loading conditionschange from when the gain was initiallyset.• Only use the manual control lever forproper adjustment of the gain duringtrailer setup. Misuse, such asapplication during trailer sway, couldcause instability of trailer or towvehicle.• Avoid towing in adverse weatherconditions. The trailer brake controllerdoes not provide anti-lock control ofthe trailer wheels. Trailer wheels canlock up on slippery surfaces, resultingin reduced stability of trailer and towvehicle.• The trailer brake controller is equippedwith a feature that reduces output atvehicle speeds below 11 mph (18 km/h)so trailer and vehicle braking is not jerkyor harsh. This feature is only availablewhen applying the brakes using yourvehicle's brake pedal, not thecontroller.• The controller interacts with the brakecontrol system and powertrain controlsystem of your vehicle to provide thebest performance on different roadconditions.• Your vehicle's brake system and thetrailer brake system workindependently of each other. Changingthe gain setting on the controller doesnot affect the operation of yourvehicle's brakes whether you attach atrailer or not.• When you switch the engine off, thecontroller output is disabled and thedisplay and module shut down. Thecontroller module and display turn onwhen you switch the ignition on.• The trailer brake controller is only afactory-installed or dealer-installeditem. Ford is not responsible forwarranty or performance of thecontroller due to misuse or customerinstallation.205F150 (TF6) , enUSA