TBC Module Wake Up

WARNING: This page is about a different car, the 2009 Ford RV Cutaway, 2009 Ford Econoline, 2009 Ford E450 Super Duty, and 2009 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

With a trailer connected to the vehicle, the TBC module will remain active while the ignition key is in the ON position to monitor the vehicle and trailer brake systems. Without a trailer connected to the vehicle, the TBC module will enter a "sleep mode" but will continue to send a PWM voltage signal to the trailer tow connector every 4 seconds to detect when a trailer is connected.

When the ignition key is in the ON position and the module is in sleep mode, pressing a gain button or sliding the manual switch will cause the module to "wake up". If a trailer is not connected to the vehicle, the message center display should prove out for 3 seconds and then display TRAILER DISCONNECTED. If a trailer is connected to the vehicle, the display should prove out for 3 seconds and then display TRAILER CONNECTED.