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Installation Supplement for Brake Controller Pigtail for Freightliner Chassis Part #EC-4128 Date: June 1, 2006 (Revised October, 2007)
Freightliner rear engine chassis built after December 2002 are pre-wired for supplemental braking. This connector will allow the Unified Tow Brake controller to be plugged into the Trailer Brake Controller connector in the motor home so that the existing wiring can be used instead of running the Unified Tow Brake motor home harness. Be sure the ignition is off during installation of the Brake Controller Pigtail. The Freightliner Trailer Brake Controller wiring and connector can generally be found just above the brake pedal under the dash. The harness is marked by a ?flag? type label.
Plug the pigtail connector with three wires into the Trailer Brake Controller connector. Find a switched 12-volt source for the remaining (red) wire that is not inserted into the pigtail connector. Freightliner recommends using their Bodybuilder Connector 1, pin B, which is a pink wire numbered 306B. This is a fused, ignition-switched connection. Splice the red wire from the pigtail into the switched 12-volt source. Plug the other end of the pigtail into the connector from the Unified Tow Brake controller.
Return to Towed Vehicle Kit (TV-1000K) Operating and Installation Instructions Return to Towed Vehicle Kit (TVH-1000K) Operating and Installation Instructions Return to Unified Tow Brake Product Page Return to Installation Page
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