Audio System Symptom Troubleshooting - No HD radio information
No HD radio information
NOTE:
Check the vehicle battery condition first.
Check for aftermarket accessories including phones and chargers plugged into the vehicle accessory power sockets.
Check the reception in an open area. Poor reception/interference can be caused by the following;
?
The radio station is far away
?
Atmospheric conditions are unfavorable
?
Tall buildings, mountains, or high-voltage power lines are nearby
Check the connectors for poor connections or loose terminals.
1.
Problem verification:

Problem verification
?1.
Turn the vehicle to the ON mode.

?2.
Check if the HD radio information is displayed in the display.

Is the HD radio information displayed?

     
YES
     
     
     
Intermittent failure, the system is OK at this time.?
     
NO
     
     
     
The failure is duplicated, go to step 2.
2.
Window antenna check:

Window antenna check
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
With the help of an assistant inside the vehicle, have the assistant shine a strong flashlight (A) along each antenna wire (B). Check from the outside of the vehicle for any breaks or openings in the antenna wires (the light shines through any breaks or cuts).
NOTE: It is easier to see the breaks if you do this test in a dark or shaded area.


Are there any breaks or cuts in the antenna wire?

     
YES
     
     
     
Repair the window antenna. Go to window antenna repair, or replace the rear window if the damaged section is too long.?
     
NO
     
     
     
Go to step 3.
3.
Determine possible failure area (SWD +B line, TMC line):

Determine possible failure area (SWD +B line, TMC line)
?1.
Disconnect the following connector.
HD radio antenna amplifier 3P connector

?2.
Turn the vehicle to the ON mode, and turn on the navigation system.

?3.
Measure the voltage between test points 1 and 2.
Test condition
Vehicle ON mode
 
HD radio antenna amplifier 3P connector: disconnected
Test point 1
HD radio antenna amplifier 3P connector No. 1
Test point 2
Body ground


Is there battery voltage?

     
YES
     
     
     
The SWD +B wire is OK. Go to step 4.
     
NO
     
     
     
Go to step 10.
4.
Open wire check (TMC line):

Open wire check (TMC line):
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the following connector.
Audio unit connector K (4P)

?3.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
Audio unit connector K (4P): disconnected
 
HD radio antenna amplifier 3P connector: disconnected
Test point 1
Audio unit connector K (4P) No. 2
Test point 2
HD radio antenna amplifier 3P connector No. 2


Is there continuity?

     
YES
     
     
     
The TMC wire is not open. Go to step 5.
     
NO
     
     
     
Replace the HD radio antenna lead and/or the HD radio sublead.?
5.
Shorted wire check (TMC line):

Shorted wire check (TMC line)
?1.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
Audio unit connector K (4P): disconnected
 
HD radio antenna amplifier 3P connector: disconnected
Test point 1
Audio unit connector K (4P) No. 2
Test point 2
Body ground

Is there continuity?

     
YES
     
     
     
Replace the HD radio antenna lead and/or the HD radio sublead.?
     
NO
     
     
     
The TMC wire is not shorted. Go to step 6.
6.
Shorted wire check (TMC line to SH (TMC) line):

Shorted wire check (TMC line to SH (TMC) line)
?1.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
Audio unit connector K (4P): disconnected
 
HD radio antenna amplifier 3P connector: disconnected
Test point 1
Audio unit connector K (4P) No. 2
Test point 2
Audio unit connector K (4P) No. 4

Is there continuity?

     
YES
     
     
     
Replace the HD radio antenna lead and/or the HD radio sublead.?
     
NO
     
     
     
The TMC wire is OK. Go to step 7.
7.
Open wire check (SH (TMC) line):

Open wire check (SH (TMC) line)
?1.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
Audio unit connector K (4P): disconnected
 
HD radio antenna amplifier 3P connector: disconnected
Test point 1
Audio unit connector K (5P) No. 5
Test point 2
HD radio antenna amplifier 3P connector No. 3


Is there continuity?

     
YES
     
     
     
The SH (TMC) wire is OK. Go to step 8.
     
NO
     
     
     
Replace the HD radio antenna lead and/or the HD radio sublead.?
8.
Shorted wire check (TMC line to SH (TMC) line):

Shorted wire check (TMC line to SH (TMC) line)
?1.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
Audio unit connector K (4P): disconnected
 
HD radio antenna amplifier 3P connector: disconnected
Test point 1
Audio unit connector K (4P) No. 2
Test point 2
Audio unit connector K (4P) No. 4

Is there continuity?

     
YES
     
     
     
Replace the HD radio antenna lead and/or the HD radio sublead.?
     
NO
     
     
     
The TMC, SH (TMC) wires is not shorted. Go to step 9.
9.
HD traffic antenna amplifier check (substitution):

HD traffic antenna amplifier check (substitution)
?1.
Substitute a known-good HD radio antenna amplifier.

?2.
Reconnect all the connectors, and recheck.

Does the symptom go away?

     
YES
     
     
     
     
NO
     
     
     
10.
Open wire check (SWD +B line):

Open wire check (SWD +B line)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the following connector.
Tuner unit connector B (5P)

?3.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
Tuner unit connector B (5P): disconnected
 
HD radio antenna amplifier 3P connector: disconnected
Test point 1
Tuner unit connector B (5P) No. 1
Test point 2
HD radio antenna amplifier 3P connector No. 1


Is there continuity?

     
YES
     
     
     
The SWD +B wire is not open. Go to step 11.
     
NO
     
     
     
Repair an open in the wire between the tuner unit and the HD radio antenna amplifier.?
11.
Shorted wire check (SWD +B line):

Shorted wire check (SWD +B line)
?1.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
Tuner unit connector B (5P): disconnected
 
HD radio antenna amplifier 3P connector: disconnected
Test point 1
HD radio antenna amplifier 3P connector No. 1
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
Repair a short to body ground in the wire between the tuner unit and the HD radio antenna amplifier.?
     
NO