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: Multiplex communication system
Outline
In case the controller area network (CAN) system is malfunctioning, read
the DTCs of the following modules, using the SST (WDS or equivalent) to
determine the malfunctioning system.
- PCM
- DSC HU/CM (with DSC)
- ABS (ABS/TCS) HU/CM (with ABS (ABS/TCS)
- Instrument clus ...
Mazda 6 Owners Manual: Evaporator temperature sensor inspection
1. Turn the AUTO switch on.
2. Set the temperature control at MAX COLD (Turn the left).
3. Turn the A/C switch.
4. Set the RECIRCULATE mode.
5. Close all doors and windows.
6. Wait for 5 minutes.
7. Remove the glove compartment.
8. Disconnect the evaporator temperature sensor.
9. Measure t ...