Integrated trailer brake control loss of function
ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL, SERVICE BRAKES
7 NHTSA complaints · 2022-03 → 2024-12
“The trailer brakes fail after a random period of time. Though the trailer works fine with other controllers, the entire trailer was rewired with new brakes and a new 7-pin connector, the problem did not changed - there are no shorts, grounds, opens in the brake circuit”
“The F-450 has intermittent power to the #5 pin (+Batt) of the 7-way trailer connection. This pin is for powering the electric over hydraulic brakes. There is also an intermittent triple chime and a visual warning of "Trailer Disconnected" when the brakes are released”
“Trailer brake controller will randomly announce "trailer wiring fault" and lose all brakes. Brake power will momentarily show requested power then cut off. Trailer has been confirmed ok, works 100% on two other trucks, ground continuity is 100% via plug only”