Pin

1

SUB-ANT*

IN

Radio Signal (Sub)

2

SUB-ANT-DET*

IN

Ground

3

MAIN-ANT

IN

Radio Signal (Main)

4

GND

GMD

5

N.C.

Descriptions

Video
Ground
Not Connected

Descriptions

Ground
Not Connected

* N.C. for 2015 Impreza, XV Crosstrek, 2016 WRX and Forester

Connector E (USB)

#

Pin

1

N.C.

Not Connected

2

N.C.

Not Connected

3

D+

IN

Data

4

D-

IN

Data

Descriptions

26

2. Troubleshooting
Connections and Pins
Connector G

Connector F

Connector F (DCM)*

Connector H

#

Pin

1

N.C.

Not Connected

2

N.C.

Not Connected

3

N.C.

Not Connected

4

N.C.

Not Connected

5

N.C.

Not Connected

6

N.C.

Not Connected

7

N.C.

Not Connected

8

MUTE

Descriptions

IN

DCM

*Applicable for 2016 Forester, Legacy and Outback (USA Model Only)

Connector G (XM Antenna)

Connector H (GPS Antenna)

#

Pin

1

ANT

IN

2

GND

GND

#

Pin

1

ANT

IN

2

GND

GND

Descriptions
XM Radio Signal

Ground

Descriptions
GPS Signal

(AVN Only)

27

Ground

2. Troubleshooting
On-Board Diagnostic Mode
1. Outline
On-Board Diagnostics can check the connectivity of devises, the vehicle signals, the
radio reception and rear view camera setting.

2. How to enter On-Board Diagnostic mode
2-1. Enter the Diagnostic mode
Procedure:
1) Turn the ignition switch to ACC.
2) Press the button (b) twice with the button (a) pressed.

3) “Line Diag” screen is displayed.
4) Check the connection status with the “Connectivity Check” in
the “Line Diag” screen.

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

2-2. Exit the Diagnostic mode
Pressing the button (c) for 3 seconds or more, or turning the ignition switch from
the ACC to OFF position can exit the diagnostic mode.

28

2. Troubleshooting
On-Board Diagnostic Mode
3. Display Layout and Explanation
3-1. Top Display Layout
①
⑤

③

*

*

②

⑥
⑦

④
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 Explanation

②

Main title
[White] after check
[Black] under check
Connected Devices

③

Results of Connectivity Check

①

④

Explanation
Enter Camera Setting

⑤

Vehicle Signal

⑥

Vehicle Signal Check Results

⑦

Enter Audio Check

No

3-2. Enter “Camera Setting”
If "Camera Setting" button is touched, the screen changes to “Camera Setting” mode.
Camera Setting

⑨

Default

⑧

No
⑧
⑨
⑩

Return

⑩
⑪

Set

⑪

Explanation
Return to Previous Screen
Initialization of Maker Line
Adjustment
Marker Line Adjustment
Finalization of Marker Line
Adjustment

Note:
For a detailed procedure to adjust the camera settings, refer to STIS. Please select the Service Manual and refer
to the Navigation System under the Entertainment Section (ET)

29

2. Troubleshooting
On-Board Diagnostic Mode
3-3. Enter “Audio Check”
If the "Audio Check" button is touched, the screen changes to “Audio Check” mode.
Line Diag

⑬

Return

Audio Check
MODE

SEEK DOWN

SEEK UP

・AM/FM ： FM XXXX kHz
・Speaker Check
Speaker Check ON

⑬

⑭

Explanation
Return to Previous Screen

⑭

Selection of Radio Band (AM/FM)

⑮

⑮

Change Radio Frequency

⑯

⑯

⑰

⑰

Radio Frequency
Speaker Check
[“OFF”, Black] after check
[“ON”, Light Blue] under check

No

4. How to check STARLINK Connectivity ID Number and
Software Version Information
4-1. Enter the Service Menu
Procedure:
1) Turn the ignition switch to ACC
2) Press the button (b) 5 times with the button (c) pressed.

3) “Service Menu” is displayed
STARLINK Connectivity ID Number:
Touch “Product Information” to display
the Connectivity ID (16 digits)
Software Version Information:
1. Touch “Service Information”
2. Touch “Version Information”
3. Touch “Push” next to AVN or DA
4-2. Exit the Service Menu
Pressing the button (c) for 3 seconds or more, or turning the ignition switch from
the ACC to OFF position can exit the diagnostic mode.
30

2. Troubleshooting
NO POWER
Condition: No Audio, No Display, No Illumination in all modes.

Check connector (A) at
the rear of the head unit.

Is connector (A) securely
connected?
Are all wires connected to
the connector?

No

Connect securely.
Repair broken wire or
replace the wire harness.

Yes
Is ACC and BU voltage 12
Volts or the same as the
vehicle voltage?

No

Check the fuse, the condition of connector pins
and ground wiring.
Repair or replace if
necessary.

Yes
Does the head unit turn
ON when ACC turns ON?

No
Replace the Head Unit.

Yes

Re-check for original
condition.

31

Re-check for
original condition.

2. Troubleshooting
NO SOUND (All modes) with Internal Amp
Condition: Absolutely no sound on all modes

No sound for all audio
sources or modes

Is the VOLUME set to a
audible level?

No

Turn up VOLUME and
re-check for original
condition.

Yes
Check resistance of all
speakers for opens or
shorts to ground.
Are any physical damage,
shorted or grounded
conditions found?

Replace or repair it and
re-check for original
condition.
Yes

Note:
If a speaker or wire harness is
shorted or grounded, the head
unit will shut off the audio output
due to circuit protection.

No
Replace the head unit.

32

2. Troubleshooting
NO SOUND (All modes) With External Amp
Condition: Absolutely no sound on all modes.
Check the B+ and ACC at the
amp. Is power present?

No
Repair or replace fuses.
Replace the head unit.

Yes
Check the Mute Line from the
head unit to the amplifier. With
No
Audio playing the voltage at
the amp should be above 3.5
Volts.
Is the Mute line above
3.5Volts?

No
Inspect the mute line
circuit for shorts to
ground.
Are any shorts to
ground found?

Yes

Repair or replace harness.

Yes

No
Disconnect the amp and
test the mute line again.
Is the Mute line above
3.5 volts?

Yes

Yes
Check speaker line at the amp
for any shorts to ground.
Any shorts to ground?

Remove ground short.

No
Check across the speakers to
see if there are any shorted
speakers. Any shorted
speakers?

Yes
Repair or replace the speaker.

No
Disconnect the head unit and
the amp. Test the Audio lines
from the head unit to the amp
for any opens or shorts to
ground.
Any opens or shorts found?

Yes
Repair or replace the harness.

No
Check for 2.5Volts on the IEBus communication line out of
the head unit.

Yes
Replace the audio amp.

Is there 2.5 Volts on the TX+
and TX- lines?

Replace the head unit.
No
33

Replace the audio amp.

2. Troubleshooting
NO SOUND (AM/FM)
Condition: No sound on Radio mode (AM/FM)