Note

1. Verify the concern.
2. Turn the ignition switch to LOCK position.
3. Disconnect the negative battery cable.
4. Connect the negative battery cable.
5. Turn the ignition switch to ON position.
6. Verify that the needle returns to zero.
Instrument cluster inspection
Instrument cluster input/output check modeMazda 6 Service Manual: Electrical parts
Battery cable
Before disconnecting connectors or removing electrical parts, disconnect
the negative battery cable.
Wiring Harness
To remove the wiring harness from the clip in the
engine room, pry up the hook of the clip using a
flathead screwdriver.
...
Mazda 6 Service Manual: Leaving Home Light
The leaving home light turns on the lights when the transmitter unlock button
is pressed while away from the vehicle.
The following lights turn on when the leaving home light is operated.
Low beams, Parking lights, Taillights, License lights.
To turn on the lights
When the ignition switch and ...