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 ProcedureSpecifications
Engine
Electrical System
*1 Q-85 is designed for i-ELOOP system. Only Q-85 should be used to ensure
correct operation of i-ELOOP
system. Consult an Authorized Mazda Dealer for details.
*2 Not for i-ELOOP system.
*3 This spark plug provides the SKYACTIV-G engine with optimum perfor ...
Passenger Compartment Temperature Sensor Inspection [Full Auto Air Conditioner]
1. Measure the temperature around the passenger compartment temperature sensor
and measure the resistance between passenger compartment temperature sensor terminals
B and D.
If the characteristics of the passenger compartment temperature sensor are
not as shown in the graph, repla ...
Unfastening the Seat Belt
Depress the button on the seat belt buckle.
If the belt does not fully retract, pull it out
and check for kinks or twists. Then make
sure it remains untwisted as it retracts.
NOTE
If a belt does not fully retract, inspect
it for kinks and twists. If it is still not
retracting properly, ...