Installation | 15
2.4 Active Calibration
When the unit is first powered and a trailer is connected, the LED will flash Blue/Green as
Active Calibration becomes confident in the direction of travel of the vehicle.
During Calibration
Once Calibrated
Time
Time
NOTE:
If there is no trailer is connected, Active Calibration will occur as normal, however the LED
will not alternate Blue/Green. The LED will already be Blue when the trailer is connected. Whether a
trailer is connected or not, drive normally and Active Calibration will ensure the Tow‑Pro
®
Elite learns
the correct direction of travel.
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.
