The radar sensors (rear) for the rear vehicle monitoring system are equipped inside the rear bumper, one each on the left and right sides.
Sedan

Hatchback

The surface area of the rear bumper near the radar sensors (rear) should always be clean so that the rear vehicle monitoring system operates correctly. Do not apply stickers or similar objects to the rear bumper.
Refer to Exterior Care on .
NOTE Consult an Authorized Mazda Dealer for radar sensors (rear) repairs and replacement, or repair, replacement or painting of the rear bumper near a radar sensors (rear).
Laser Sensor (Front)
Cruise ControlBrake Fluid Pressure Sensor Inspection
1. Switch the ignition to off.
2. Install the SSTs to the master cylinder (secondary side) as shown in
the figure.
NOTE:
When installing the SST (49 D043 0A0) to the master cylinder, use
a commercially available flare nut wrench (flare nut across flat 12 mm {0.47
in}).
...
Climate Control Unit Inspection [Manual Air Conditioner]
1. Remove the climate control unit with the connector connected..
2. Switch the ignition to ON.
3. Connect the negative (-) lead of the tester to the body ground.
4. By inserting the positive (+) lead of the tester into the climate control
unit connector, measure the voltage according to the ...
Fan Switch Inspection [Manual Air Conditioner]
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Upper panel.
b. Shift lever knob (MTX).
c. Selector lever knob (ATX).
d. Shift panel.
e. Side wall.
f. Console.
g. Front scuff plate.
h. Front side trim.
i. Dashboard under cover.
j. Glove compartment. ...