1. Inspect for resistance between the rear door speaker terminals using an ohmmeter.


2. To verify that the rear door speaker outputs sound, apply voltage to the rear door speaker and release using a 1.5-V battery.
Rear door speaker removal/installation
Tweeter removal/installationMazda 6 Service Manual: Close Proximity Warning
If your vehicle rapidly closes in on the vehicle ahead because the vehicle applies
the brakes suddenly while you are traveling in headway control, the warning sound
activates and the brake warning is indicated in the display. Always verify the safety
of the surrounding area and depress the bra ...
Mazda 6 Service Manual: Starting a Flooded Engine
If the engine fails to start, it may be flooded (excessive fuel in the engine).
Follow this procedure:
1. If the engine does not start within five seconds on the first try, wait ten
seconds and try again.
2. Make sure the parking brake is on.
3. Depress the accelerator all the way and hold it ...