Manufacturer Code Charts: 2605

Navigation System DTC Troubleshooting: 2605

DTC 2605: H/U Diag: Connect

NOTE:

- Check the vehicle battery condition first. Testing and Inspection

- Check for B-CAN DTCs and resolve them before troubleshooting.

- Before you troubleshoot, make sure to follow the general troubleshooting information. Reading and Clearing Diagnostic Trouble Codes

1. Clear the hard error code. Reading and Clearing Diagnostic Trouble Codes

2. Turn the ignition switch to LOCK (0), and then back ON (II).

3. Check the Error History. Reading and Clearing Diagnostic Trouble Codes

Is DTC 2601 indicated?
YES - Do the DTC 2601 troubleshooting.

NO - Go to step 4.


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

5. Check the System Links.

Is the Radio icon red?
YES - Go to step 6.

NO - Intermittent failure, the system is OK at this time.


6. Turn the ignition switch to LOCK (0).

7. Check for poor connections or loose terminals at audio unit connector E (14P), AcuraLink control unit (XM receiver) connector A (32P), or XM receiver connector A (14P), and at the navigation display unit 28P connector, USB adapter unit connector A (14P), and the HandsFreeLink control unit 28P connector.

Are there connections OK?
YES - Go to step 8.

NO - Repair poor connections or loose terminals, and recheck the Self-Diagnosis Mode. Navigation System Diagnostic Mode


8. Disconnect audio unit connector E (14P), AcuraLink control unit (XM receiver) connector A (32P) or XM receiver connector A (14P), the navigation display unit 28P connector, USB adapter unit connector A (14P), and the HandsFreeLink control unit 28P connector.

9. Connect audio unit connector E (14P) terminals No. 9 and No. 10 with a jumper wire.






10. Check for continuity between navigation display unit 28P connector terminals No. 3 and No. 17.

Is there continuity?
YES - Do the Audio System Symptom Troubleshooting.

NO - There is an open in the wire(s) between audio unit and navigation display unit. Replace the affected shielded harness.