On first power-up, the Tow-Pro® Elite uses Active Calibration to learn its orientation from vehicle movement and braking. The LED flashes blue/green until calibration is complete, then turns solid blue for full Proportional mode. This usually takes around 20 brake applications and will restart if power is disconnected. Calibration works with or without a trailer.
This information is applicable to the following Tow-Pro Electric Brake Controllers:
- Tow-Pro Elite V3 (EBRH-ACCV3, EBRH-ACCV3-NA)
- Tow-Pro Trail Kit (CIKTP-NA-0**, North America only)
When the unit is first powered, Active Calibration must first become confident in the vehicle direction of travel. Until this time the LED will flash Blue/Green.
Active Calibration constantly monitors the vehicle’s direction of travel and allows the Tow‑Pro® Elite to ‘learn’ and continuously confirm its mounting orientation. This process occurs whilst the vehicle is moving and the brake is applied and will occur with or without a trailer connected.
When the Tow‑Pro® Elite is first installed it will begin learning its mounting orientation through Active Calibration as soon as you start driving, at this point Proportional Mode is selected but not yet fully operational.
Until the Tow‑Pro® Elite has determined its mounting orientation the unit will function as if in User-Controlled mode, this is indicated by the LED glowing green with blue flashes. As the Tow‑Pro® Elite becomes more confident of its direction of travel the length of the Blue flash will increase, to the point that the LED is solid Blue which indicates it is now operating completely in Proportional mode.
Under normal driving conditions the Tow‑Pro® Elite will learn its mounting orientation within 20 brake applications. Note that the braking must be perceptible (applying the brake while stopped will not assist calibration).
If power is disconnected (for example, if the vehicle battery is changed) calibration memory will be lost and the unit will recalibrate itself using active calibration. This is similar to a radio losing its clock or preset station memory.
NOTE: If no trailer is connected, Active Calibration may occur as normal without any indication from the LED. The LED will already be Blue when the trailer is connected. Essentially, whether a trailer is connected or not, just drive normally and Active Calibration will ensure the Tow‑Pro® Elite learns the correct direction of travel.