Integrated Trailer Brake Module - Operation

OPERATION

NOTE:
The Integrated Trailer Brake Module (ITBM) does not control the trailer lights or the vehicle lights.

Automatic Braking The Integrated Trailer Brake Module (ITBM) is powered with an ignition ON voltage source and has a single ground connection. The ITBM communicates on the CAN Bus for vehicle speed signal, Electronic Stability Control (ESC) active signal and the VIN information. There is also a hard wired brake switch input into the ITBM. The ITBM uses this information along with an internal accelerometer to determine how much braking to apply to the trailer brakes. The output is a Pulse Width Modulated (PWM) circuit for control of trailer braking intensity during stops. The ratio between vehicle braking and trailer braking is adjusted by the user with the plus/minus (±) switch on the face of the module. The ITBM is used to control the trailer brakes based on the deceleration reading of the vehicle and will send the output to control the trailer brakes only when a trailer connection is recognized. If a trailer is not connected to the vehicle, the ITBM output will be disabled.

Manual Trailer Braking In addition to automatic trailer braking, the user can manually apply the trailer brakes prior to or without the vehicle brakes by sliding the ITBM manual sliding brake lever/switch to the right at any time. In this circumstance the accelerometer and other trailer braking inputs are ignored and trailer braking intensity is controlled by the user.