Ford 2015 E-450 User Manual download pdf (Page 134)

Procedure for Adjusting Gain

Note: Only perform this procedure in a traffic-free environment at

speeds of approximately 20–25 mph (30–40 km/h).

The gain setting sets the trailer brake controller for the specific towing

condition. You should change the setting 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 making sure the trailer wheels do not lock when using the brakes.

Locked trailer wheels may lead to trailer instability.

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 you plug in a trailer with electric or electric-over-hydraulic

brakes, TRAILER CONNECTED appears in the information display.

4. Use the gain adjustment (+ and -) 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. 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 control

lever completely.

6. If the trailer wheels lock up, indicated by squealing tires, reduce the

gain setting. If the trailer wheels turn freely, increase the gain setting.

Repeat Steps 5 and 6 until the gain setting is at a point just below

trailer wheel lock-up. If towing a heavier trailer, trailer wheel lock-up

may not be attainable even with the maximum gain setting of 10.

Explanation of Information Display Warning Messages

Note: An authorized dealer can diagnose the trailer brake controller to

determine exactly which trailer fault has occurred. However, your Ford

warranty does not cover this diagnosis if the fault is with the trailer.

TRAILER BRAKE MODULE FAULT: Displays in response to faults

sensed by the trailer brake controller, accompanied by a single chime. If

this message appears, contact an authorized dealer as soon as possible

for diagnosis and repair. The controller may still function, but

performance may be degraded.

Towing 133

2015 Econoline (eco)

Owners Guide gf, 1st Printing, June 2014

USA (fus)

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Ford 2015 E-450 User Manual Page 134