
Diagnostic procedure

No.21 engine noise
No.23 a/c does not work sufficientlyMazda 6 Service Manual: Exterior lighting system
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Mazda 6 Service Manual: Rear door speaker inspection
1. Inspect for resistance between the rear door speaker terminals using an
ohmmeter.
If not as specified, replace the rear door speaker.
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.
If not outputs ...