Mazda 6 Service Manual: No.11 engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges

No.10 low idle/stalls during deceleration

No.12 lack/loss of power-acceleration/cruise

Other materials:

Mazda 6 Service Manual: Electrical parts
Battery cable Before disconnecting connectors or removing electrical parts, disconnect the negative battery cable. Wiring Harness To remove the wiring harness from the clip in the engine room, pry up the hook of the clip using a flathead screwdriver. ...

Mazda 6 Service Manual: Cruise Control (Some models)
With cruise control, you can set and automatically maintain any speed of more than about 25 km/h (16 mph). WARNING Do not use the cruise control under the following conditions: Using the cruise control under the following conditions is dangerous and could result in loss of vehicle control. ...