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: Fuel tank removal/installation
Warning
Repairing a fuel tank that has not been properly steam cleaned can
be dangerous. Explosion or ire may cause death or serious injury. Always
properly steam clean a fuel tank before repairing it.
Fuel line spills and leakage are dangerous. Fuel can ignite and
cause serious injur ...
Mazda 6 Service Manual: Immobilizer System
The immobilizer system allows the engine to start only with a key the system
recognizes.
If someone attempts to start the engine with an unrecognized key, the engine
will not start, thereby helping to prevent vehicle theft.
If you have a problem with the immobilizer system or the key, consult ...