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: Settings
NOTE Depending on the grade and specification, the screen display may differ. Select the icon on the home screen and display the Settings screen. Switch the tab and select the setting item you want to change. You can customize settings in the setup display as follows: ...

Mazda 6 Service Manual: On-board diagnostic test
DTCs Reading Procedure 1. Perform the necessary vehicle preparation and visual inspection. 2. Connect WDS or equivalent to the vehicle DLC-2 16-pin connector located as shown in the figure. 3. Retrieve DTCs by WDS or equivalent. Pending Trouble Code Access Procedure 1. Perform the necessary ...