Mazda 6 Service Manual: No.5 engine stalls-after start/at idle

No.4 hard to start/long crank/erratic start/erratic crank

No.6 cranks normally but will not start

Other materials:

Mazda 6 Service Manual: Immobilizer System
The immobilizer system allows the engine to start only with a key the system recognizes. If someone attempts to start the engine with an unrecognized key, the engine will not start, thereby helping to prevent vehicle theft. If you have a problem with the immobilizer system or the key, consult ...

Mazda 6 Service Manual: Receiving an Incoming Call
When an incoming call is received, the incoming call notification screen is displayed. The “Incoming Call Notifications” setting must be on. To accept the call, press the pick-up button on the audio control switch or select on the screen. To reject the call, press the hang-up button on the ...