The coming home light turns on the headlights (low beams) when the lever is operated.
To turn on the lights
When the lever is pulled with the ignition switched to ACC or OFF, the low beam headlights turn on.
The headlights turn off after a certain period of time has elapsed after the doors are closed.

NOTE
Flashing the Headlights
Leaving Home LightMazda 6 Owners Manual: Oil pressure inspection
Warning
Continuous exposure to USED engine oil has caused skin cancer in
laboratory mice. Protect your skin by washing with soap and water
immediately after working with engine oil.
Hot engines and engine oil can cause severe burns. Turn off the
engine and wait until it and the engine ...
Mazda 6 Owners Manual: No.9 tcs off light stays on more than 4 seconds with ignition switch on
When performing an asterisked (*) troubleshooting inspection, shake the
wiring harness and connectors while
doing the inspection to discover whether poor contact points are the cause
of any intermittent malfunction. If
there is a problem, check to make sure connectors, terminals and ...