Because the antenna system is equipped with a capacitor, the continuity cannot be checked. Therefore proceed the following simple inspection.
Turn the AM radio on.
Tune to the frequency that there is no broadcast and you will hear a buzzing sound.
Turn a work light on and shake it around the antenna rod. (around 10—20 mm {0.40—0.78 in})
CAUTION:
Use a fluorescent light type for the inspection. Accurate diagnostic cannot be done with a different type of light.

If a whirring sound from the speaker synchronized to the work light movement is confirmed, the antenna system is normal.
Coil Antenna Removal/Installation
Entertainment Personalization Features Setting ProcedureSaving Fuel and Protection of the
Environment
How you operate your Mazda determines
how far it will travel on a tank of fuel. Use
these suggestions to help save fuel and
reduce CO2.
Avoid long warm-ups. Once the engine
runs smoothly, begin driving.
Avoid fast starts.
Drive at lower speeds.
Anticipate when to apply the brakes
(a ...
Heated Oxygen Sensor (HO2 S) Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING:
A hot engine and exhaust system can cause severe burns. Turn off the engine
and wait until they are cool before removing the exhaust system.
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Disconnect the HO2S connector.
4. Remove the HO2S u ...
B Pillar Lower Trim Removal/Installation
1. Remove the front scuff plate..
2. Remove the rear scuff plate..
3. Partially peel back the seaming welt.
4. Pull the B-pillar lower trim in the direction of the arrow (1), (2) shown
in the figure, detach tab A, pin B, pin C, clip D.
5. Remove the B-pillar lower trim in the direction ...