Audio-Navigation System DTC Troubleshooting: 2710
DTC 2710: USB Cable Diag
NOTE:
Check the vehicle battery condition first.
This navigation DTC sets when a problem is detected in the microphone circuit (the Mic icon is red in the System Link).
Before you troubleshoot, make sure to follow the General Troubleshooting Information.
Check any official Honda service website for more service information about the navigation system.
Check the connectors for poor connections or loose terminals.
1.
Problem verification:

Problem verification
?1.
Clear the hard error codes.

?2.
Press the engine start/stop button to select the OFF mode and then select the ON mode.

?3.
Check for hard error codes.

Is DTC 2710 indicated?

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

USB icon check
?1.
Substitute a known-good USB device.

?2.
Go into the System Diagnostic Mode, and select the USB in the System Links.

Does the USB icon change color from red to green?

     
YES
     
     
     
Intermittent failure, the system is OK at this time.?
     
NO
     
     
     
Go to step 3.
3.
Shorted wire check (USB lines) 1:

Shorted wire check (USB lines) 1
?1.
Press the engine start/stop button to select the OFF mode.

?2.
On the customer's vehicle, disconnect the customer's USB device from the USB port.

?3.
Disconnect the following connector.

?4.
Check for continuity between these test points and body ground individually.
Test condition
OFF mode
 
Audio-navigation unit connector K (5P): disconnected

Connector
Test circuit
Terminal
Audio-navigation unit connector K (5P)
USB VBUS
No. 2
USB DATA+
No. 3
USB DATA?
No. 4
USB GND
No. 1


Is there continuity?

     
YES
     
     
     
Go to step 4.
     
NO
     
     
     
The USB wires are not shorted to ground. Go to step 5.
4.
Shorted wire check (USB lines) 2:

Shorted wire check (USB lines) 2:
?1.
Disconnect the following connector.

?2.
Check for continuity between these test points and body ground individually.
Test condition
OFF mode
 
Audio-navigation unit connector K (5P): disconnected

Connector
Test circuit
Terminal
Audio-navigation unit connector K (5P)
USB VBUS
No. 2
USB DATA+
No. 3
USB DATA?
No. 4
USB GND
No. 1


Is there continuity?

     
YES
     
     
     
Replace the USB adapter.?
     
NO
     
     
     
Replace the USB port.?
5.
Shorted wire check (USB lines) 2:

Shorted wire check (USB lines) 2
?1.
Check for continuity between test points 1 and 2.
Test condition
OFF mode
 
Audio-navigation unit connector K (5P): disconnected
 
USB adapter 5P connector: disconnected

Test circuits
Connector: Audio-navigation unit connector K (5P)
Test point 1
Test points 2
USB SH to
USB VBUS, USB DATA+, USB DATA?, USB GND
No. 5
No. 2, No. 3, No. 4, No. 1
USB VBUS to
USB DATA+, USB DATA?, USB GND
No. 2
No. 3, No. 4, No. 1
USB DATA+ to
USB DATA?, USB GND
No. 3
No. 4, No. 1
USB DATA? to USB GND
No. 4
No. 1


Is there continuity between any of the terminals?

     
YES
     
     
     
There is a short in the wires between the audio-navigation unit and the USB port. Replace the affected shielded harness.?
     
NO
     
     
     
The USB wires are not shorted in the wires. Go to step 6.
6.
Open wire check (USB lines, audio-navigation unit):

Open wire check (USB lines, audio-navigation unit)
?1.
Check for continuity between test points 1 and 2.
Test condition
OFF mode
 
Audio-navigation unit connector K (5P): disconnected

Test circuit
Test point 1:
Audio-navigation unit connector K (5P)
Test point 2:
USB port 5P connector
USB VBUS
No. 2
No. 1
USB DATA+
No. 3
No. 3
USB DATA?
No. 4
No. 2
USB GND
No. 1
No. 4



Is there continuity?

     
YES
     
     
     
     
NO
     
     
     
Go to step 7.
7.
USB adapter check:

USB adapter check
?1.
Disconnect the following connector.

?2.
Check for continuity between test points 1 and 2.
Test condition
OFF mode
 
Audio-navigation unit connector K (5P): disconnected
 
USB adapter 5P connector: disconnected

Test circuit
Test point 1:
Audio-navigation unit connector K (5P)
Test point 2:
USB port 5P connector
USB VBUS
No. 2
No. 1
USB DATA+
No. 3
No. 3
USB DATA?
No. 4
No. 2
USB GND
No. 1
No. 4



Is there continuity?

     
YES
     
     
     
Replace the USB port, then recheck.?
     
NO
     
     
     
Replace the USB adapter, then recheck.?