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: Automatic Transaxle Controls
Various Lockouts: Indicates that you must depress the brake pedal and hold in the lock-release button to shift (The ignition must be switched ON). Indicates the shift lever can be shifted freely into any position. Indicates that you must hold in the lock-release button to shift. N ...

Mazda 6 Service Manual: Windshield wiper motor inspection
L.H.D. 1. Disconnect the windshield wiper motor connector. 2. Connect battery positive voltage to terminal E or D and ground to terminal B, and inspect the operation of the windshield wiper motor as indicated below. 3. Disconnect battery positive voltage from terminal E of the motor while t ...