Inspection Of Radio Function

WARNING: This page is about a different car, the 2019 Subaru BRZ. However, it is still accessible from the selected car via links, so may be relevant.

Connections inspection

Display the diagnostic mode.

Turn the ignition switch to ACC.
Press the VOLUME button to display the audio off screen.

With the audio off, touch the screen in order 1 to 4.

Courtesy of SUBARU OF AMERICA, INC.

Display the {Line Diag} screen.

NOTE: You can cancel diagnostic mode by pressing the VOLUME button or turning the ignition switch from OFF to ACC.

Check the connection status by using the {Connectivity Check} item of the {Line Diag} screen.
OK: All connected devices are properly connected.

NG: A device is not connected or there is a fault in the connection status.

NOTE: Check the external connection terminals (USB and AUX) by connecting a memory or pin jack for checking, and check the connections.
Inspect the connection status of connectors, and if there are no problems found, it is probable that a connected device or the main unit is defective.

Inspection of vehicle signals
1. Display the diagnostic mode in the same manner as when inspecting connections.
2. Check the connection status by using the {Vehicle Signal Check} item of the {Line Diag} screen.
  1. Illumination inspection
    NOTE: Turn the ignition switch to ON before starting the inspection.
    1. Turn the headlight dimmer switch to the parking position.
      Check that the light control rheostat does not turn ON at this time.
    2. Check that {OK} of the ILL+ item is lit up and the screen goes dark.
      OK: Normal
      
      NG: Fault Inspect the signal wire connectors, and if there are no problems found, it is probable that the main unit is defective.
  2. Inspection of the speed sensor
    NOTE:
    Check that the area around the vehicle is safe before starting the inspection.
    
    It is helpful to lift up the vehicle.
    
    Clear the memory if any diagnostic codes are input into the VDC Control Module.
    1. Drive the vehicle at a speed of 8 km/h (5 mph) or more.
    2. Check that {OK} is displayed for the SPD item.
      OK: Normal
      
      NG: Speed was less than 8 km/h (5 mph) or the signal line is faulty. Inspect the signal wire connectors, and if there are no problems found, it is probable that the main unit is defective.
  3. Inspection of parking brake signal
    1. Pull the parking brake lever.
    2. Check that {OK} is displayed for the PKB item.
      OK: Normal
      
      NG: Fault Inspect the signal wire connectors, and if there are no problems found, it is probable that the main unit is defective.
  4. Inspection of the back sensor
    NOTE: Check that the area behind the vehicle is safe before starting the inspection. Turn the ignition switch to ON.
    1. With the parking break lever pulled and the brake pedal depressed, move the select or gearshift lever to reverse.
    2. Check that {OK} is displayed for the REV item.
      OK: Normal
      
      NG: Fault Inspect the signal wire connectors, and if there are no problems found, it is probable that the main unit is defective.