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: Combine sensor removal/installation
Caution Be careful and do not allow the combine sensor to fall. If by chance it is subjected to strong impact, replace it. 1. Remove the center console. 2. Remove in the order indicated in the table. 3. Install in the reverse order of removal. 4. After installation, perform the comb ...

Mazda 6 Service Manual: Direct Mode
Direct mode can be used for temporarily switching gears by operating the steering shift switch while the vehicle is being driven with the selector lever in the D range. While in direct mode, the D and M indication illuminate and the gear position in use is illuminated. Direct mode is canceled ...