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: Dtc c1095, c1096
Caution When attaching the tester lead to the DSC HU/CM connector the SST (49 G066 004) must be used. Diagnostic procedure ...

Mazda 6 Service Manual: Traffic Sign Display Indication
The following traffic signs are displayed on the active driving display. Speed limit signs Do not enter signs Stop signs The above indications are some examples. NOTE Speed limit signs When the vehicle speed is about 1 km/h (0.6 mph) or faster, the speed limit sign is displayed wh ...