Mazda 6 Service Manual: No.3 will not crank

No.2 mil illuminates

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

Other materials:

Mazda 6 Service Manual: Cruise Control Function
While this function is operating, the headway control operation is canceled and only the cruise control function operates. The vehicle speed can be set more than about 25 km/h (16 mph). Use the cruise control function on expressways and other highways which do not require a lot of repeated acc ...

Mazda 6 Service Manual: Headlight bulb removal/installation
Low-beam Halogen type 1. Disconnect the negative battery cable. 2. Disconnect the front combination light. (See FRONT COMBINATION LIGHT REMOVAL/INSTALLATION) 3. Remove in the order indicated in the table. Caution A halogen bulb generates extremely high heat when it is used. If the ...