8.2.1.5 Calibration step 4
After calibration step 3 finished, operator need to move the right side of
calibration bar backward about 300mm, back to original 1m position,
and then move the left side of calibration bar forward about 300mm.
Make sure the two targets on the calibration bar are vertical to the
ground, and prepare to calibrate.
Turn the calibration beam slowly to the vehicle tail direction according
to the animation indication.
113