1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Rear seat cushion.
b. Rear scuff plate.
c. Tire house trim.
d. C-pillar trim.
e. Rear package trim.
f. Rear center speaker.
3. Verify the resistance between the rear center speaker terminals.

If not within the specification, replace the rear center speaker.

0.9—1.1 ohms
Keyless Antenna Removal/Installation
Rear Center Speaker Removal/InstallationIf a Warning Light Turns On or Flashes
If any warning light turns on/flashes, take appropriate action for each
light. There is no
problem if the light turns off, however if the light does not turn off or turns
on/flashes again,
consult an Authorized Mazda Dealer.
(Vehicles with type B audio)
The warning contents can be verified o ...
Sunlight/Temperature Sensor
The climate control system measures
inside and outside temperatures, and
sunlight. It then sets temperatures inside
the passenger compartment accordingly.
CAUTION
Do not obstruct either sensor,
otherwise the climate control system
will not operate properly.
...
Spark Plug Inspection [Mzr 2.0, Mzr 2.5]
Specification
Spark plug type
LFJD-18110, L3Y2-18110
Plug Gap Inspection
CAUTION:
To avoid possible damage to the tip, do not adjust the spark plug gap. (L3Y2-18110)
To prevent damaging the tip, use a wire type plug gap gauge when inspecting
the spark plug gap. (L3 ...