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 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 ...

Mazda 6 Service Manual: Torque formulas
When using a torque wrench-SST or equivalent combination, the written torque must be recalculated due to the extra length that the SST or equivalent adds to the torque wrench. Recalculate the torque using the following formulas. Choose the formula that applies to you. A : The leng ...