No sound for AM/FM.

Is the VOLUME set to a
audible level?

No

Turn up the VOLUME
and recheck for original
condition.

Yes

Check if Antenna jack is
securely connected to
the head unit.

Yes

Radio sound came
back?

The problem was
solved.

No
Remove antenna jack
from the head unit and
connect a known good
external test antenna.
Is the radio sound
restored?

Check ANT+B voltage
from the head unit.
Yes

Check antenna system.

(A - 10P connector, #8 pin
voltage is 12V )

Is ANT+B voltage within
specification?

No
No
Replace the head unit.
Replace the head unit.

34

Yes

Ex) Roof antenna
Antenna AMP
Antenna wire harness

2. Troubleshooting
VOLUME FADES UP AND DOWN (FM/AM HD* RADIO)
Condition: A noticeable drop in audio level is heard when listening to AM/FM radio.
Audio level is fading
up and down on AM/
FM.

Is the orange HD logo
being displayed on the
AM/FM screen?

No

The radio is in Analog
mode and the vehicle is
moving out of the radio
station coverage area.

Move to a location
closer to the broadcasting
radio station, and check for
original condition.

Yes
Press the settings icon
on the top of the
AM/FM screen, and turn
off the HD radio.
Yes
Was the problem
solved?

The problem was
solved. The vehicle
was traveling out of HD
coverage area and the
unit was changing from
HD to analog. This
causes a change in
Audio.

No
Move to a location
closer to the
broadcasting radio
station, and check for
original condition.

*Not available for Canadian model

35

2. Troubleshooting
NO SOUND (SAT RADIO)
Condition: No sound on SAT radio
No sound for SAT (Satellite)
radio.

Check surroundings:
Is the vehicle in an
environment where the signal
is difficult to receive?

Yes

Move the vehicle to a
location open to the sky
and check it again.

No
Change to other modes (AM/
FM/CD) and then select a XM
mode again. Did the SAT radio
sound come back?

Yes

The problem was solved.

No
SAT radio is a paid service.
Did the customer’s
subscription expire? Or, did
the free subscription expire?

Yes

Contact Satellite Radio
company and check
subscription status.
Renew as needed.
Note:
1. “UART” and “CAN” are not
shown for 86271FJ630/730
and 86201FJ660/760
2. “GPS” will indicate “NG” on
non-Navigation equipped Infotainment systems

No
Check if Antenna jack is
securely connected to the
head unit.
And check the connectivity in
diagnostic mode.
Is the SAT radio sound
restored?

The problem was
solved.
Yes

No
Check SAT power supply
voltage from the head unit.

Yes

Disconnect SAT antenna connector from the
head unit and connect a
known good test
external SAT antenna.

Check antenna system
(Antenna wire harness,
Roof antenna, etc.)

Is the SAT radio sound
restored?

(1P connector G, output 5V )

Is voltage within specification?

Yes

Replace the head unit.
No

No

36

2. Troubleshooting
NO SOUND (USB)
Note:
1. “UART” and “CAN” are not
shown for 86271FJ630/730
and 86201FJ660/760
2. “GPS” will indicate “NG” on
non-Navigation equipped Infotainment systems

Condition: No sound on USB
No sound for USB.

Does the USB flash memory
have MP3/WMA/AAC files?

No

The head unit will only
playback MP3/WMA/
AAC files in USB
mode.

Yes
Check the USB connectivity in diagnostic
mode.
Does the indicator
display "OK"?

Re-connect the vehicle USB port.
Does the diagnostic mode
display "OK"?

No

No

Yes
Yes

If the USB flash memory has an
LED indicator, does this indicator
lamp light up when it is connected
to the head unit?

Switch to USB mode
and re-check for
original problem.

No
Use a known good
USB flash memory
containing MP3/WMA/
AAC files.
Does the head unit
play the files?

Yes
Yes

Original USB flash
memory could be
defective.
Replace the vehicle USB port with
a known-good one and re-check
original problem.
Does the same issue occur?

No

Replace the head unit.

Yes

No
The vehicle USB port
is defective and
needs to be replaced.

37

2. Troubleshooting
NO SOUND (CD)
Condition: No sound on CD
No sound for CD.

Does the head unit
accept and eject CD
correctly?

No

Is there any foreign object
(ex. label) in the CD slot?

Yes

Yes

Is the head unit installed
property?

Yes

No

Insert and playback a
known-good,
commercially available
CD. Does the CD play?

Replace the head unit.

No

Yes

Is CD-R/RW being
used?

Remove foreign object.

Are CDDA/MP3/WMA/
AAC files recorded to CD
-R/RW?
Yes

Yes

Check to make sure
that the original CD is
not excessively
scratched or warped
and re-check for
original condition.

No
Replace the head unit.

38

No

No

Re-install the head unit
properly and re-check
for original condition.

The head unit cannot
playback files other
than CDDA/MP3/WMA/
AAC.
Re-check for original
condition with a CD-R/
RW containing the
supported media files.

2. Troubleshooting
NO SOUND (AUX)
Condition: No sound on AUX
Note:
1. “UART” and “CAN” are not
shown for 86271FJ630/730
and 86201FJ660/760
2. “GPS” will indicate “NG” on
non-Navigation equipped Infotainment systems

No sound for AUX

Yes
Check the AUX connectivity in
diagnostic mode.
Does the indicator display
"OK"?

No

Check connection of
the cable (plug) to the
head unit.

Yes
Check the volume on the device connected.
Is the volume on the device
minimum?

Adjust the volume on
the device.
Yes

No
Check the volume on the head
unit.
Is the volume on the head unit
minimum?

Adjust the volume on
the head unit.
Yes

No
Inspect the cable condition.
Is the cable shorted or damaged?

Repair or replace the
cable.
Yes

No
Replace the head unit.

39

2. Troubleshooting
NO SOUND (iPod)
Note:
1. “UART” and “CAN” are not
shown for 86271FJ630/730
and 86201FJ660/760
2. “GPS” will indicate “NG” on
non-Navigation equipped Infotainment systems

Condition: No sound on iPod

Is the iPod compatible?

No

See the owners manual page
97 for a list of compatible Apple
products. For the latest updates
see Subaru.com.

Non supported iPod
may not work.

Yes
Check the USB connectivity in
diagnostic mode since iPod
will be connected to USB port.

Reconnect the vehicle USB port.
Does the diagnostic mode
display "OK"?

No

Does the indicator display
"OK"?

Yes
Yes

No
Switch to iPod mode and
re-check for original condition.

Disconnect the iPod device
and check to see if iPod
works by itself.

No

Use a known good iPod device
containing music files and recheck for original condition.

Does iPod play without being
connected to the head unit?

Yes

Examine customer's iPod.

Use a known good cable from
the iPod to the USB port
Does the same issue occur?

Yes

Replace the vehicle USB port
with a known-good one and
re-check original condition.
Does the same issue occur?

No
Yes

iPod cable is
defective.

Replace the head unit.

40

No

Original USB Port is
defective and needs to
be replaced.

2. Troubleshooting
CD SKIP
Condition: CD Skips

CD skips.

Does CD skipping only
occur when vehicle is in
motion?

Yes

Does CD skipping
happen at the same
location?

Yes

(Ex. dirt road, railroad track,
road construction may cause
CD skipping).

No

No

Are the head unit mounting screws tight?

No

Yes
Replace CD with knowngood CD.
Does the problem still
occur?

Check the location if road
condition is good

No

CD being used may be excessively scratched/warped or has
paper label on it. Replace disc
and re-check for original
condition.

Yes

Replace the head unit.

41

Re-install the head unit
properly and re-check for
original condition.

2. Troubleshooting
CD WON’T PLAY CORRECTLY
Condition: Won't read CD, abnormal playback, makes noise when playing CD

CD won't play correctly.

Is the CD clean and free
from scratches and/or
finger prints?

No

Please clean the CD
and try again.

Yes
Is a paper label on the
CD?

Yes