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

Other materials:

Mazda 6 Service Manual: Volume/Display/Sound Controls
Volume adjustment Turn the commander switch volume dial. The volume switch on the steering switch can also be pressed. Display setting Select the icon on the home screen to display the Settings screen. Select the tab to select the item you would like to change. Display OFF/Clock The c ...

Mazda 6 Service Manual: After repair procedure
Caution After repairing a malfunction, perform this procedure to verify that the malfunction has been corrected. When this procedure is carried out, be sure to drive the vehicle at lawful speed and pay attention to the other vehicles. 1. Connect the WDS or equivalent to the DLC-2. 2. Turn th ...