1. Disconnect the negative battery cable..
2. Remove the inner garnish..
3. Remove the front door trim..
4. Remove the front door speaker..
5. Verify the resistance between the front door speaker terminals.

If not within the specification, replace the front door speaker.

Without Bose®: 3.4—4.6 ohms
With Bose®: 1.83—2.47 ohms
Front Center Speaker Removal/Installation
Front Door Speaker Removal/InstallationEngine Disassembly/Assembly [Mzr 2.0, Mzr 2.5]
1. Remove the engine from the transaxle..
2. Remove the generator..
3. Remove the exhaust system..
4. Remove the EGR valve..
5. Remove the intake-air system..
6. Remove the fuel injectors..
7. Remove the ignition coils..
8. Remove the crankshaft position (CKP) sensor..
9. Disassemble ...
Accessory Sockets
Only use genuine Mazdaaccessories or the
equivalent requiring no greater than 120 W
(DC 12 V, 10 A).
Type A
The accessory sockets can be used
regardless of whether the ignition is on or
off.
Type B *
The ignition must be switched to ACC or
ON.
With CD Player
Without CD Player
...
Mass Air Flow (MAF) Sensor Inspection [Mzr 2.0, Mzr 2.5]
Visual Inspection
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Disconnect the MAF/IAT sensor connector.
4. Remove the MAF/IAT sensor..
5. Visually inspect the MAF/IAT sensor for the following:
Damage, cracks, soiling
Rusted sensor terminal
...