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 - Refer to: How to Troubleshoot the Navigation System, or How to Troubleshoot the Navigation System (Display Audio) (2016-17) .
• 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

   -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

   -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

   -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.

   Audio-navigation unit connector K (5P) - Refer to: Audio-Navigation Unit Removal and Installation, or Audio-Navigation Unit Removal and Installation (Display Audio) (2016-17)

   - 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

   Courtesy of HONDA, U.S.A., INC.

   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

   -1. Disconnect the following connector.

   USB adapter 5P 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

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   Replace the USB adapter.

   NO 

   Replace the USB port.

5. 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

   Courtesy of HONDA, U.S.A., INC.

   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)

   -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

   Courtesy of HONDA, U.S.A., INC.

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   Replace the audio-navigation unit - Refer to: Audio-Navigation Unit Removal and Installation, or Audio-Navigation Unit Removal and Installation (Display Audio) (2016-17) .

   NO 

   Go to step 7.

7. USB adapter check

   -1. Disconnect the following connector.

   USB adapter 5P 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

   Courtesy of HONDA, U.S.A., INC.

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   Replace the USB port, then recheck.

   NO 

   Replace the USB adapter, then recheck.