Mazda 6 Service Manual: No.4 hard to start/long crank/erratic start/erratic crank

No.3 will not crank

No.5 engine stalls-after start/at idle

Other materials:

Mazda 6 Service Manual: To Temporarily Cancel
To temporarily cancel the system, use one of these methods: Slightly depress the brake pedal. (Manual transaxle) Depress the clutch pedal. Press the OFF/CANCEL switch. If the RESUME/ switch is pressed when the vehicle speed is 25 km/h (16 mph) or higher, the system reverts to the prev ...

Mazda 6 Service Manual: Warning Light and Brake Pad Wear Indicator
Warning Light The warning light turns on when the system has a malfunction. Refer to Warning Indication/Warning Lights Brake Pad Wear Indicator When the disc brake pads become worn, the built-in wear indicators contact the disc plates. This causes a screeching noise to warn that the pads shoul ...