Manufacturer Code Charts: 2601
Navigation System DTC Troubleshooting: 2601
DTC 2601:
Display Diag: Connect
NOTE:
- Check the vehicle battery condition first Battery Test.
- This navigation DTC sets when a GA-Net bus problem is detected (open or short), or an internal ECU bus circuit problem is detected (open or short).
- Check for B-CAN DTCs and resolve them before troubleshooting.
- Before you troubleshoot, make sure to follow the General Troubleshooting Information How to Troubleshoot the Navigation System.
1. Clear the hard error code.
2. Turn the ignition switch to LOCK (0) and then back to ON (II).
3. Go into the System Diagnostic Mode, and select the Self-Diagnosis Mode in the Select Diagnosis Items menu.
4. Check the System Links.
Is the Display icon red?
YES -
Go to step 5.
NO -
Intermittent failure, the system is OK at this time.
5. Check for poor connections or loose terminals at these items:
- Navigation unit connector B (32P)
- Navigation display unit 28P connector
- Audio unit connector E (14P)
- XM receiver connector A (14P)
- USB adapter control unit connector A (14P)
- Audio disc changer 14P connector
Are there connections or terminals OK?
YES -
Go to step 6.
NO -
Repair poor connections or loose terminals, and recheck.
6. Turn the ignition switch to LOCK (0).
7. Disconnect navigation unit connector B (32P) and the navigation display unit 28P connector.
8. Connect navigation unit connector B (32P) terminals No. 7 and No. 23 with a jumper wire.
9. Check for continuity between navigation display unit 28P connector terminals No. 10 and No. 24.
Is there continuity?
YES -
Go to step 10.
NO -
There is an open in the wire(s) between the navigation unit and the navigation display unit. Replace the affected shielded harness.
10. Remove the jumper wire.
11. Disconnect these items:
- Audio unit connector E (14P)
- XM receiver connector A (14P)
- USB adapter control unit connector A (14P)
- Audio disc changer 14P connector
12. Check for continuity between navigation display unit 28P connector terminals No. 10 and No. 24, and between terminals No. 12 and No. 26.
Is there continuity?
YES -
There is a short in the wires between GA-Net(+) and (-) wire. Replace the affected shielded harness.
NO -
Go to step 13.
13. Check for continuity between body ground and navigation display unit 28P connector terminals No. 10 and No. 24 individually.
Is there continuity?
YES -
There is a short to body ground in the wire(s) between the navigation display unit and the navigation unit. Replace the affected shielded harness.
NO -
Go to step 14.
14. Reconnect the all connectors, then turn the ignition switch to ON (II).
15. Go into the System Diagnostic Mode, and select the Self-Diagnosis Mode in the Select Diagnosis Items menu.
16. Check the System Links.
Is the Display icon red?
YES -
Go to step 17.
NO -
Intermittent failure, the system is OK at this time.
17. Turn the ignition switch to LOCK (0).
18. Disconnect audio unit connector E (14P), and then turn the ignition switch to ON (II).
19. Go into the System Diagnostic Mode, and select the Self-Diagnosis Mode in the Select Diagnosis Items menu.
20. Check the System Links.
Is the Display icon red?
YES -
Go to step 21.
NO -
Internal short circuit in the audio unit.
21. Turn the ignition switch to LOCK (0).
22. Connect audio unit connector E (14P).
23. Disconnect XM receiver connector A (14P), and then turn the ignition switch to ON (II).
24. Go into the System Diagnostic Mode, and select the Self-Diagnosis Mode in the Select Diagnosis Items menu.
25. Check the System Links.
Is the Display icon red?
YES -
Go to step 26.
NO -
Internal short circuit in the XM receiver.
26. Turn the ignition switch to LOCK (0).
27. Connect XM receiver connector A (14P).
28. Disconnect USB adapter control unit connector A (14P), and then turn the ignition switch to ON (II).
29. Go into the System Diagnostic Mode, and select the Self-Diagnosis Mode in the Select Diagnosis Items menu.
30. Check the System Links.
Is the Display icon red?
YES -
Go to step 31.
NO -
Internal short circuit in the USB adapter control unit.
31. Turn the ignition switch to LOCK (0).
32. Connect USB adapter control unit connector A (14P).
33. Disconnect audio disc changer 14P connector, and then turn the ignition switch to ON (II).
34. Go into the System Diagnostic Mode, and select the Self-Diagnosis Mode in the Select Diagnosis Items menu.
35. Check the System Links.
Is the Display icon red?
YES -
Replace the navigation display unit Service and Repair.
NO -
Internal short circuit in the audio disc changer.