Mazda 6 Service Manual: No.19 excessive shift shock on torque converter clutch (tcc)

No.18 excessive shift shock is felt when upshifting and downshifting

No.20 noise occurs at idle when vehicle is stopped in all positions/ranges

Other materials:

Mazda 6 Service Manual: Foreword
When the customer reports a vehicle malfunction, check the malfunction indicator lamp (MIL) indication and diagnostic trouble code (DTC), then diagnose the malfunction according to following flowchart. - If a DTC exists, diagnose the applicable DTC inspection. (See DTC TABLE.) - ...

Mazda 6 Service Manual: Rear brake (disc) inspection
Brake Judder Repair Hint 1. (See FRONT BRAKE (DISC) INSPECTION.) Disc Plate Thickness Inspection Caution Excessive runout may result if the disc plate is removed from the vehicle then machined. Machine the disc plate while installed on the vehicle. 1. Measure the thickness of the dis ...