USB port inspection

Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.5] .)
Remove the following parts:
1. Console up (See REAR CONSOLE REMOVAL/INSTALLATION .)
2. Auxiliary jack/USB port (See AUXILIARY JACK/USB PORT REMOVAL/INSTALLATION .)
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 auxiliary jack/USB port, and verify the continuity at the insertion side and terminal side of the USB device.

Fig 1: Checking USB Port Pin Continuity
Courtesy of MAZDA MOTORS CORP.
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.
  
  Fig 2: USB Device Terminal Continuity Chart
  Courtesy of MAZDA MOTORS CORP.
- If not as indicated in the table, replace the auxiliary jack/USB port.