Move the float to the topmost and bottommost positions, and verify that the resistance between terminals A and B of the unit and the position of the float are as indicated in the figure.

Pid/data monitor and record procedure
Oil pressure switch inspectionMazda 6 Service Manual: Master cylinder removal/installation
1. Remove in the order indicated in the table.
R.H.D.
L.H.D.
2. Install in the reverse order of removal.
Master Cylinder Installation Note
Caution
Always install the gasket of the power brake unit push rod before
performing measurement inspections or adjustments.
1. Install the ...
Mazda 6 Service Manual: Front drain hose installation
Caution
If the front drain hose is pinched or bent anywhere, the water in the hose
may not discharge and enter the inside of the vehicle. During and after
installation of the trims and the headliner, always make sure there is no
interference with the front drain hose. Fix any problem if found ...