2021 Subaru Outback BaseFACTORY OEM SERVICE PROCEDURE

Service Inspection: Connection

On Service Menu, click "Connection" to display the following items.

OK: Each connection device is connected properly.

NG: Connection is not established, or connection status (including harness) is faulty.

NOTE: Check the external connection terminals (USB 1, USB 2 and AUX) by connecting memory or a pin jack for inspection.
Check the connection status of the connector and harness. If there are no problems, the connection device or unit could be faulty.
The following shows information to be displayed and its description.
Item Item detection method OK judgment condition Note
GPS Direct line GPS antenna is connected. (NG is displayed when short circuit is detected.) With navigation only
MIC Direct line (i101) No. 19 falls to GND level. -
CAM Direct line Synchronized signals from the camera are input to (i101) No. 28. -
AUX Direct line (i101) No. 35 falls to GND level. -
USB1 Communication USB device is connected to USB-HUB to obtain USB device information properly. (Should be recognizable as a supported USB device.)
  • If the device (e.g. iPhone) connected via USB becomes HOST, the USB-connected devices cannot be detected; therefore, the connection status will be shown as "NG". When checking USB connection, it must be done so that the connected device does not become HOST. (e.g. Connection checking must not be done with the status of the Car Play connection or the Starlink automatic connection "ON".)
  • If the device (e.g. iPhone) connected via USB becomes HOST, USB1 and USB2 may be switched. After the connected device has become HOST, the ignition must be turned off and then on to check USB connection.
USB2 Communication USB device is connected to USB-HUB to obtain USB device information properly.
(Should be recognizable as a supported USB device.)
DCM Communication USB communication with DCM can be executed normally. -
Leather AMP Communication CAN communication with external AMP can be executed normally. -
SXM Direct line XM-ANT is connected. (NG is displayed when short circuit is detected.) It takes approx. 30 seconds to become recognizable.
CAN Communication CAN communication is completed properly. -
Meter Communication LVDS communication with the combination meter can be executed normally. -
CID Communication LVDS communication with the center information display can be executed normally. -
Deck Communication USB communication with CD deck can be executed normally. -
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.