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: Vehicle speedometer sensor (vss) removal/installation
Caution Water or foreign objects entering the connector can cause a poor connection or corrosion. Be sure not to drop water or foreign objects on the connector when disconnecting it. If foreign materials are stuck to the VSS, disturbance by magnetic flux can cause sensor output to be ...

Mazda 6 Service Manual: Power outside mirror inspection
1. Disconnect the power outside mirror connector. 2. Apply battery positive voltage to the power outside mirror terminals and inspect the operation of the power outside mirror. If not as specified, replace the power outside mirror. 3. Inspect for continuity between the power outside mi ...