Mazda 6 Service Manual: No.21 noise occurs at idle when vehicle is stopped in d, s, l ranges, or in r position

No.20 noise occurs at idle when vehicle is stopped in all positions/ranges

No.22 no engine braking in hold mode

Other materials:

Mazda 6 Service Manual: To Decrease Cruising Speed
Press the SET/ switch and hold it. The vehicle will gradually slow. Release the switch at the desired speed. Press the SET/ switch and release it immediately to adjust the preset speed. Multiple operations will decrease the preset speed according to the number of times it is operated. Decr ...

Mazda 6 Service Manual: Dtc table
DTCs are common for present and past malfunction diagnosis. Note When DTCs not shown in the DTC table are displayed, replace the SAS unit. If the air bag system warning light does not illuminate or remains illuminated when the ignition switch is turned to ON position, i ...