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: Wheel hub, hub spindle pre-inspection
Wheel Bearing Play Inspection 1. Position a dial indicator against the wheel hub. 2. Push and pull the wheel hub by hand in the axial direction and measure the wheel bearing play. Maximum wheel bearing play 0.05 mm {0.002 in} 3. If the bearing play exceeds the specification, replace a ...

Mazda 6 Service Manual: Rear door lock actuator inspection
Door Lock Actuator 1. Disconnect the front door lock actuator connector. 2. Apply battery positive voltage to the front door lock actuator terminals and inspect the operation of the front door lock actuator. If not as specified, replace the front door lock actuator. With double locking ...