DTC 2607 (2016 2017 2018)

DTC 2607  : XM Diag

NOTE: 

• Check the vehicle 12 volt battery condition first .
• This navigation DTC sets when a problem (open or short) is detected in the GA-Net BUS (the XM icon is red in the System Links).
• 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

   -1. Clear the hard error codes .

   -2. Turn the vehicle to the OFF (LOCK) mode then the ON mode.

   -3. Check for hard error codes .

   Is DTC 2607 indicated?

   YES 

   The failure is duplicated, go to step 2.

   NO 

   Intermittent failure, the system is OK at this time.

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

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Disconnect the following connector.

   XM receiver connector A (14P)

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

   Test condition	Vehicle OFF (LOCK) mode
   	XM receiver connector A (14P): disconnected
   Test point 1	XM receiver connector A (14P) No. 6
   Test point 2	Body ground

   Is there battery voltage?

   YES 

   Go to step 5.

   NO 

   Go to step 3.

3. Open wire check (GA+B line)

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

   Test condition	Vehicle OFF (LOCK) mode
   	XM receiver connector A (14P): disconnected
   Test point 1	Audio-navigation unit connector D (12P) No. 12
   Test point 2	Body ground

   Is there battery voltage?

   YES 

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

   NO 

   The GA+B wire is not open. Go to step 4.

4. Shorted wire check (GA+B line)

   -1. Disconnect the following connector.

   Audio-navigation unit connector D (12P)

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

   Test condition	Vehicle OFF (LOCK) mode
   	XM receiver connector A (14P): disconnected
   	Audio-navigation unit connector D (12P): disconnected
   Test point 1	Audio-navigation unit connector D (12P) No. 12
   Test point 2	Body ground

   Is there continuity?

   YES 

   Repair a short to body ground in the wire between the audio-navigation unit and the XM receiver.

   NO 

   Replace the audio-navigation unit .

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

   -1. Reconnect XM receiver connector A (14P).

   -2. Turn the vehicle to the ON mode.

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

   Test condition	Vehicle ON mode
   Test point 1	XM receiver connector A (14P) No. 10
   Test point 2	Body ground

   Is there less than 0.2 V?

   YES 

   Go to step 7.

   NO 

   Go to step 6.

6. Open wire check (GA GND line)

   -1. Turn the vehicle to the OFF (LOCK) mode.

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

   Test condition	Vehicle OFF (LOCK) mode
   Test point 1	Audio-navigation unit connector D (12P) No. 6
   Test point 2	Body ground

   Is there any voltage?

   YES 

   Replace the audio-navigation unit .

   NO 

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

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

   -1. Turn the vehicle to the OFF (LOCK) mode.

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

   Test condition	Vehicle OFF (LOCK) mode
   Test point 1	Audio-navigation unit connector D (12P) No. 8

   Test point 2

   Body ground

   Is there battery voltage?

   YES 

   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	Vehicle OFF (LOCK) mode
   Test point 1	XM receiver connector A (14P) No. 5
   Test point 2	Body ground

   Is there battery voltage?

   YES 

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

   NO 

   Replace the XM receiver .

9. Audio-navigation unit check

   -1. Turn the vehicle to the ON mode.

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

   Test condition	Vehicle ON mode
   Test point 1	Audio-navigation unit connector D (12P) No. 8
   Test point 2	Body ground

   Is there less than 0.2 V?

   YES 

   Go to step 10.

   NO 

   Replace the audio-navigation unit .

10. Shorted wire check (GA BUS+, GA BUS- lines)

    -1. Turn the vehicle to the OFF (LOCK) mode.

    -2. Disconnect the following connectors.

    Audio-navigation unit connector D (12P)

    XM receiver connector A (14P)

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

    Test condition	Vehicle OFF (LOCK) mode
    	Audio-navigation unit connector D (12P): disconnected
    	XM receiver connector A (14P): disconnected
    Test circuit 1
    Test point 1	Audio-navigation unit connector D (12P) No. 1
    Test point 2	Body ground

    Test circuit 2
    Test point 1	Audio-navigation unit connector D (12P) No. 7
    Test point 2	Body ground

    Is there continuity?

    YES 

    There is a short to body ground in the wire(s) between the audio-navigation unit and the XM receiver. Replace the affected shielded harness.

    NO 

    The GA BUS+ and the GA BUS- wires are not shorted to ground. Go to step 11.

11. Shorted wire check (GA BUS+ line to GA BUS- line)

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

    Test condition	Vehicle OFF (LOCK) mode
    	Audio-navigation unit connector D (12P): disconnected
    	XM receiver connector A (14P): disconnected
    Test point 1	Audio-navigation unit connector D (12P) No. 1
    Test point 2	Audio-navigation unit connector D (12P) No. 7

    Is there continuity?

    YES 

    There is a short in the wires between the audio-navigation unit and the XM receiver. Replace the affected shielded harness.

    NO 

    The GA BUS+ and the GA BUS- wires are not shorted. Go to step 12.

12. Shorted wire check (SH GA BUS line to another lines)

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

    Test condition	Vehicle OFF (LOCK) mode
    	Audio-navigation unit connector D (12P): disconnected
    	XM receiver connector A (14P): disconnected
    Test circuit 1
    Test point 1	Audio-navigation unit connector D (12P) No. 2
    Test point 2	Audio-navigation unit connector D (12P) No. 7

    Test circuit 2
    Test point 1	Audio-navigation unit connector D (12P) No. 2
    Test point 2	Audio-navigation unit connector D (12P) No. 1

    Is there continuity?

    YES 

    There is a short in the wires between the audio-navigation unit and the XM receiver. Replace the affected shielded harness.

    NO 

    The SH GA BUS wire is OK. Go to step 13.

13. Open wire check (GA BUS+, GA BUS- lines)

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

    Test condition	Vehicle OFF (LOCK) mode
    	Audio-navigation unit connector D (12P): disconnected
    	XM receiver connector A (14P): disconnected
    Test circuit 1
    Test point 1	Audio-navigation unit connector D (12P) No. 1
    Test point 2	XM receiver connector A (14P) No. 11

    Test circuit 2
    Test point 1	Audio-navigation unit connector D (12P) No. 7
    Test point 2	XM receiver connector A (14P) No. 12

    Is there continuity?

    YES 

    Replace the XM receiver .

    NO 

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