Mazda 6 Service Manual: No.12 lack/loss of power-acceleration/cruise

No.11 engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges

No.13 knocking/pinging-acceleration/cruise

Other materials:

Mazda 6 Service Manual: Excessive Speed Warning
If the vehicle speed exceeds the speed limit sign displayed on the active driving display, the warning sound is activated and the area around the speed limit sign displayed on the active driving display flashes 3 times in amber, and if the vehicle speed continues to exceed the displayed speed ...

Mazda 6 Service Manual: Noise filter inspection
Brake Light Noise Filter 1. Inspect for resistance and continuity between the noise filter terminals using an ohmmeter. If not as specified, replace the noise filter. Rear Window Defroster Noise Filter Inspect for resistance and continuity between the noise filter terminals using an ...