Mazda 6 Service Manual: No.20 noise occurs at idle when vehicle is stopped in all positions/ranges

No.19 excessive shift shock on torque converter clutch (tcc)

No.21 noise occurs at idle when vehicle is stopped in d, s, l ranges, or in r position

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Mazda 6 Service Manual: Operating Tips for AAC
AAC stands for Advanced Audio Coding, which is standardized voice compression established by the ISO*1 working group (MPEG). Audio data can be created and stored at a higher compression ratio than MP3. This unit plays files with the extensions (.aac/.m4a/.wav) as the AAC files. *1 Internationa ...

Mazda 6 Service Manual: Battery inspection
Battery Inspect the battery in the following procedure. Test load chart Battery positive voltage with load Back-up Current 1. Verify that the engine switch is at OFF and that the key has been removed. 2. Disconnect the negative battery cable. 3. Measure the back-up current between the n ...