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: Washer fluid-level sensor inspection
1. Disconnect the negative battery cable. 2. Remove the washer tank. (See WASHER TANK REMOVAL/INSTALLATION) 3. Insoect for continuity between the washer fluid-level sensor terminals using an ohmmeter. 4. Verify that the windshield washer motor operates. If not as specified, replace the ...

Mazda 6 Service Manual: Inspection of dtcs for condition detection mode
Note The cruise set indicator light will illuminate for 3 seconds, when condition detection mode is on. If the RESUME/ACCEL switch on the cruise control switch is malfunctioning, the cruise set indicator light will not give a correct indication when you inspect the system. 1. Drive ...