Self Diagnosis Of The Control Panel And Audio

WARNING: This page is about a different car, the 2011 Subaru Tribeca. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSTIC PROCEDURE CHART

Step	Check	Yes	No
1 SETTING THE SELF-DIAGNOSIS MODE BY OPERATING THE CONTROL PANEL. Turn the audio system OFF with the ignition switch on ACC or ON. With the TUNE UP switch and the SEEK DOWN switch held down, hold the RDM switch down for 2 seconds or more. A buzzer will sound, and the unit will enter the diagnosis mode.	Does the self diagnosis mode of the control panel operate?	Go to step 3	Go to step 2
2 CHECK BUZZER.	Did the buzzer sound when going into the diagnosis mode?	Go to step 7	Check the connection of harness connector, and if there are no problems found, repair or replace the audio unit and control panel. Ref. to REMOVAL , Audio. Ref. to REMOVAL , Control Panel.
3 CHECK VFD DISPLAY SECTION.	Does whole VFD display section illuminate?	Go to step 4	Replace the audio unit. Ref. to REMOVAL , Audio.
4 CHECK THE COMMUNICATION STATUS. Press the preset 1 switch, and confirm the TEMP display section of the control panel.	When the switch is pressed, is «888» displayed at the TEMP display section?	Go to step 5	Go to step 6
5 CHECK THE COMMUNICATION STATUS.	Was the display in step 3 on the left side TEMP display section?	Replace the audio unit. Ref. to REMOVAL , Audio.	Replace the control panel. Ref. to REMOVAL , Control Panel.
6 CHECK SWITCH. Operate the switches in the following list, and check the display content in the left and right TEMP displays.	Does the switch check list and the operated switches match? Ref. to SWITCH CHECK LIST , INSPECTION, Control Panel.	Self diagnosis on audio main body is normally operated.	Replace the control panel. Ref. to REMOVAL , Control Panel.
7 CHECK THE MALFUNCTION DISPLAY. Reconnect the connector between the control panel and the audio. Operate the control panel and switch to the self diagnosis mode.	Did the control panel switch to the malfunction diagnosis mode?	Go to step 4	Go to step 8
8 CHECK THE MALFUNCTION DISPLAY.	Did the buzzer sound when going into the self diagnosis mode?	Ref. to REMOVAL , Audio.	Ref. to REMOVAL , Audio. Ref. to REMOVAL , Control Panel.