2005 Ford F250 Owner Guide 3rd Printing - Page 171

Tires, Wheels and Loading The braking system of the tow vehicle is rated for operation at the GVWR not GCWR. Integrated trailer brake controller (if equipped) Your vehicle may be equipped with a fully integrated electronic Trailer Brake Controller (TBC). When used properly, the TBC helps assure smooth and effective trailer braking by powering the trailer's electric brakes with a proportional output based on the towing vehicle's brake pressure. The Ford TBC can only be used with trailers having electric-actuated drum brakes (one to four axles) and not hydraulic surge or electric-over-hydraulic types. It is the responsibility of the customer to ensure that the trailer brakes are adjusted appropriately, functioning normally and all electric connections are properly made. The TBC user interface consists of the following: 1. +/- (GAIN adjustment buttons): Pressing these buttons will adjust the TBC's power output to the trailer brakes (in 0.5 increments). The GAIN setting can be increased to a maximum of 10.0 or decreased to a minimum of 0 (no trailer braking). Pressing and holding a button will raise or lower the setting continuously. 2. Trailer connection indicator: This lamp indicates trailer electrical connection status. • When a successful trailer connection is detected, the indicator will be green. • 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. 171 2005 F250/350/450/550 (f23) Owners Guide (post-2002-fmt) USA_English (fus)