Battery
Inspect the battery in the following procedure.

Test load chart

Battery positive voltage with load

Back-up Current
1. Verify that the engine switch is at OFF and that the key has been removed.
2. Disconnect the negative battery cable.
3. Measure the back-up current between the negative battery terminal and the negative battery cable.
- Inspect and repair harnesses and connectors of the fuse at which the current decreases.
Back-up current
20 mA max.
Caution
Battery removal/installation
Battery rechargingMazda 6 Service Manual: Foreword
When the customer reports a vehicle malfunction, check the malfunction
indicator lamp (MIL) indication and diagnostic trouble code (DTC), then
diagnose the malfunction according to following flowchart.
- If a DTC exists, diagnose the applicable DTC inspection. (See DTC
TABLE.)
- ...
Mazda 6 Service Manual: How to use USB mode
This unit does not support a USB 3.0 device. In addition, other devices may not
be supported depending on the model or OS version.
USB devices formatted to FAT32 are supported (USB devices formatted to other
formats such as NTFS are not supported).
Playback
1. Select the icon on the home
...