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: Control valve body installation
On-Vehicle Installation Caution Be sure to align the parking rod and the manual valve. 1. Install the accumulator springs and accumulators into the transaxle case. 2. Install the control valve body component. Tightening torque 7.8-10.8 N·m {80-110 kgf·cm, 70-95 in·lbf} Bo ...

Mazda 6 Service Manual: Fuse Panel Description
Fuse block (Engine compartment)           *Some models. Fuse block (Left side)         *Some models. ...