Auxiliary jack inspection
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Upper console.
b. Auxiliary jack/USB port.
3. Connect a commercially-available plug to the external input unit.

4. Verify that the continuity between the external input unit terminals is as indicated in the table.

If not as indicated in the table, replace the external input unit.
USB port inspection
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Upper console.
b. Auxiliary jack/USB port.
3. Insert the pins to positions UA', UB', UC', and UD' shown in the figure from the side of the USB device insertion area for the external input unit, and verify the continuity at the insertion side and terminal side of the USB device.

4. Verify that the continuity at the insertion side and terminal side of the USB device is as indicated in the table.
NOTE:
When inspecting the USB device insertion side, touch it with a paper clip or similar thin pin without directly inserting a tester into the terminals.

If not as indicated in the table, replace the external input unit.
Auxiliary Jack/Usb Port
Auxiliary Jack/Usb Port Removal/InstallationAwd Control Module Removal/Installation
CAUTION:
When performing configuration, it is necessary to read the coupling component
calibration data from the AWD control module before replacing it. Connect the
M-MDS to the vehicle and perform vehicle identification before removing the
AWD control module. The coupling component ...
Service Publications
Service Publications
Factory-authorized Mazda service publications are available for owners who wish
to do some of their own maintenance and repair.
When requesting any of our publications through an Authorized Mazda Dealer, refer
to the chart below.
If they do not have what you need in stock ...
Auto Light Sensor
Purpose
The auto light sensor detects the illumination level above and in front of
the vehicle and outputs it to the front body control module (FBCM).
Function
The auto-light sensor uses the upward illumination level sensor to detect
the illumination level above the vehicle ...