Audio-Navigation System DTC: 2607 (2016 2017 2018)

DTC 2607  : XM Diag

NOTE: 

• Check the vehicle battery condition first .
• This navigation DTC sets when a GA-Net bus problem is detected (open or short). (the SXM icon is red in the System Links).
• Check any official Honda service website for more service information about the navigation system.
• Before you troubleshoot, make sure to follow the General Troubleshooting Information .
• Check the connectors for poor connections or loose terminals.

1. Problem verification

   -1. Go into the System Diagnostic Mode, and use the System Links to check the SXM icon status .

   Is the SXM icon red?

   YES 

   The failure is duplicated, go to step 2.

   NO 

   Intermittent failure, the system is OK at this time.

2. DTC check

   -1. Check for hard error codes .

   Is DTC 2601 indicated?

   YES 

   NAVIGATION SYSTEM (2019 2020 2021 2022) .

   NO 

   Go to step 3.

3. Determine possible failure area (GA+B line, others)

   -1. Press the engine start/stop button to select the OFF mode.

   -2. Disconnect the following connector.

   Tuner unit connector A (20P)

   -3. Measure the voltage between test points 1 and 2.

   Test condition	OFF mode
   	Tuner unit connector A (20P): disconnected
   Test circuit	GA+B
   Test point 1	Tuner unit connector A (20P) No. 16 (BLU)
   Test point 2	Body ground

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

   Is there battery voltage?

   YES 

   The GA+B wire is OK. Go to step 5.

   NO 

   Go to step 4.

4. Open wire check (GA+B line)

   -1. Measure the voltage between test points 1 and 2.

   Test condition	OFF mode
   	Tuner unit connector A (20P): disconnected
   Test circuit	GA+B
   Test point 1	Audio-navigation unit connector D (12P) No. 12 (BLU)
   Test point 2	Body ground

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

   Is there battery voltage?

   YES 

   Repair an open in the wire between the audio-navigation unit and the tuner unit.

   NO 

   Replace the audio-navigation unit .

5. Determine possible failure area (GA GND line, others)

   -1. Check for continuity between test points 1 and 2.

   Test condition	OFF mode
   	Tuner unit connector A (20P): disconnected
   Test circuit	GA GND
   Test point 1	Tuner unit connector A (20P) No. 6 (BRN)
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   The GA GND wire is OK. Go to step 7.

   NO 

   Go to step 6.

6. Open wire check (GA GND line)

   -1. Check for continuity between test points 1 and 2.

   Test condition	OFF mode
   	Tuner unit connector A (20P): disconnected
   Test circuit	GA GND
   Test point 1	Audio-navigation unit connector D (12P) No. 6 (BRN)
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   Repair an open or high resistance in the wire between the audio-navigation unit and the tuner unit.

   NO 

   Replace the audio-navigation unit .

7. Determine possible failure area (GA SYS ON line, others)

   -1. Reconnect tuner unit connector A (20P).

   -2. Disconnect the following connector.

   Telematics control unit connector A (36P)

   -3. Measure the voltage between test points 1 and 2.

   Test condition	OFF mode
   	Telematics control unit connector A (36P): disconnected
   Test circuit	GA SYS ON
   Test point 1	Audio-navigation unit connector D (12P) No. 8 (TAN)
   Test point 2	Body ground

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

   Is there about 3.0V?

   YES 

   The GA SYS ON wire is OK. Go to step 9.

   NO 

   Go to step 8.

8. Open wire check (GA SYS ON line)

   -1. Measure the voltage between test points 1 and 2.

   Test condition	OFF mode
   	Telematics control unit connector A (36P): disconnected
   Test circuit	GA SYS ON
   Test point 1	Tuner unit connector A (20P) No. 12 (TAN)
   Test point 2	Body ground

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

   Is there about 3.0V?

   YES 

   Repair an open in the wire between the audio-navigation unit and the tuner unit.

   NO 

   Replace the tuner unit .

9. Audio-navigation unit check

   -1. Press the engine start/stop button to select the ON mode.

   -2. Measure the voltage between test points 1 and 2.

   Test condition	ON mode
   	Telematics control unit connector A (36P): disconnected
   Test circuit	GA SYS ON
   Test point 1	Audio-navigation unit connector D (12P) No. 8 (TAN)
   Test point 2	Body ground

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

   Is there less than 0.2 V?

   YES 

   Go to step 10.

   NO 

   Replace the audio-navigation unit .

10. Open wire check (GA BUS+ line, GA BUS- line)

    -1. Press the engine start/stop button to select the OFF mode.

    -2. Disconnect the following connectors.

    Audio-navigation unit connector D (12P)

    Tuner unit connector A (20P)

    -3. Check for continuity between test points 1 and 2.

    Test condition	OFF mode
    	Telematics control unit connector A (36P): disconnected
    	Audio-navigation unit connector D (12P): disconnected
    	Tuner unit connector A (20P): disconnected
    Test circuit	GA BUS+
    Test point 1	Audio-navigation unit connector D (12P) No. 7 (BLU)
    Test point 2	Tuner unit connector A (20P) No. 11 (BLU)

    Test circuit	GA BUS-
    Test point 1	Audio-navigation unit connector D (12P) No. 1 (PNK)
    Test point 2	Tuner unit connector A (20P) No. 1 (PNK)

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

    Is there continuity?

    YES 

    Replace the tuner unit .

    NO 

    There is an open in the wire(s) between the audio-navigation unit and the tuner unit. Replace the affected shielded harness.