Mazda 6 Service Manual: No.2 vehicle moves in n position

No.1 vehicle does not move in d, s, l ranges, or in r position

No.3 vehicle moves in p position, or parking gear does not disengage when p is disengaged

Other materials:

Mazda 6 Service Manual: Manually Shifting Down
You can shift gears down by operating the selector lever or the steering shift switches (some models). M6 → M5 → M4 → M3 → M2→ M1 Using selector lever To shift down to a lower gear, tap the selector lever forward (-) once. Using steering shift switch (Some model ...

Mazda 6 Service Manual: Transaxle range (tr) switch inspection
Operating Inspection 1. Verify that the starter operates only when the ignition switch is at the START position with the selector lever in P or N position. If not as specified, adjust the TR switch. 2. Verify that the back-up lights illuminate when shifted to R position with the ignition ...