Manufacturer Code Charts: 2704

Navigation System DTC Troubleshooting: 2704

DTC 2704:

HIP Diag (AcuraLink)

USA models

NOTE:

- Check the vehicle battery condition first Testing and Inspection.
- This navigation DTC sets when a problem is detected in the COMM BUS (open or short) or in the AcuraLink control unit (XM receiver).
- Check for and resolve and CAN DTCs before troubleshooting DTC 2704.
- Before you troubleshoot, make sure to follow the General Troubleshooting Information How to Troubleshoot the Navigation System.

1. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode, then back to ON (II), or the ON mode.

2. Go into the System Diagnostic Mode, and select the Self-Diagnosis Mode in the Select Diagnosis Items menu Navigation System Diagnostic Mode.

3. Check the System Links.

Is the XM (HIP) icon red?

YES -

Go to step 4.

NO -

Intermittent failure, the system is OK at this time.�

4. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

5. Connect the HDS to the DLC Initial Inspection and Diagnostic Overview.

6. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

7. Do the B-CAN test mode A Troubleshooting - B-CAN System Diagnosis Test Mode A, and check the communication with the AcuraLink control unit (XM receiver).

Does the AcuraLink control unit communicate with the HDS?

YES -

Go to step 8.

NO -

Go to AcuraLink control unit (XM receiver) Troubleshooting.�

8. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

9. Disconnect AcuraLink control unit (XM receiver) connector A (32P) and audio-navigation unit connector H (28P).

10. Check for continuity between the terminals of AcuraLink control unit (XM receiver) connector A (32P) according to the table.









Is there continuity between any of terminals?

YES -

There is a short in the wire(s) between the AcuraLink control unit (XM receiver) and the audio-navigation unit. Replace the affected shielded harness.�

NO -

Go to step 11.

11. Check for continuity between body ground and AcuraLink control unit connector A (32P) terminals No. 17, No. 18, No. 19, and No. 20 individually.





Is there continuity?

YES -

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

NO -

Go to step 12.

12. Check for continuity between body ground and audio-navigation unit connector H (28P) terminals No. 9, No. 10, No. 22, and No. 23 individually.





Is there continuity?

YES -

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

NO -

Go to step 13.

13. Check for continuity between the terminals of AcuraLink control unit (XM receiver) connector A (32P) and audio-navigation unit connector H (28P) according to the table.













Is there continuity?

YES -

Replace the audio-navigation unit Audio-Navigation Unit Removal/Installation (With Navigation), and recheck. If the symptom/indication goes away, replace the original audio-navigation unit Audio-Navigation Unit Removal/Installation (With Navigation).If the symptom/indication still present, replace the AcuraLink control unit (XM receiver) AcuraLink Control Unit (XM Receiver) Removal/Installation.�

NO -

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