6.Using the Maintenance Hand Tool, go to the first tire to be programmed and proceed to activate each of the trailer’s tire pressure sensors in the proper order. Starting on the left side (road side) of the trailer at the forward axle, begin by activating the inner tire and proceed to work counterclockwise from inner to the outer tire. Work in a
7.To activate the tire pressure sensor, hold the SmarTire® system Maintenance Hand Tool’s antenna against the tire’s upper sidewall 
button to learn the ID code of the sensor. In most cases, the Maintenance Hand Tool is able to receive signals from the inner tire on the dual tire configuration as well. To program the inner tire, hold the Tool in line with the circumferential position of the valve stem of the inner wheel, as indicated below:
If the sensor is not programmed from this position, you many also place the Tool between the dual tire assemblies and activate the sensor by placing the antenna near the tire sidewall, 
button will abort the Walk- Around Learn procedure.
8.Once the Tool has learned the tire pressure sensor ID for the given position, it briefly displays the received ID code and automatically switches to the next tire position.
Press the Learn 
button to initiate the next tire sensor. Repeat until all the tires have been learned into the Tool. At this point you may also press the Up 
and Down 
arrow buttons to select and view any previously learned wheel positions. If needed, you may also 
button. Any previously learned sensor ID codes will be replaced by the new ID code for that position.
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