Symptom Troubleshooting

Navigation System Symptom Troubleshooting - Navigation cannot control HVAC by voice command

Navigation cannot control HVAC by voice command

NOTE:

- Check the vehicle battery condition first Battery Test.
- Check the connectors for poor connections or loose terminals.
- Verify that the correct audio-navigation unit is installed for this model. Go into the System Diagnostic Mode, and use Version.
- Check any official Honda service website for more service information about the navigation system.

1. Connect the HDS to the DLC.

2. Clear the DTCs with the HDS.

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

4. Check for DTCs.

Are there any DTCs indicated?

YES -

Troubleshoot and repair all CAN related DTCs, and recheck.

NO -

Go to step 5.

5. Check the hard error code.

Are there any hard codes stored?

YES -

Refer to the hard error code troubleshooting.

NO -

Go to step 6.

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

7. Disconnect audio-navigation unit connector E (20P) and climate control unit connector A (36P).

8. Check for continuity between audio-navigation unit connector E (20P) terminals No. 6 and No. 15 and climate control unit connector A (36P) terminals No. 1 and No. 19 respectively.





Is there continuity?

YES -

Go to step 9.

NO -

Repair an open in the wire(s) between the audio-navigation unit and the climate control unit.

9. Substitute and a known-good climate control unit Climate Control Unit Removal/Installation. Reconnect all connectors, and recheck.

Does the symptom go away?

YES -

Replace the original climate control unit Climate Control Unit Removal/Installation.

NO -

Replace the audio-navigation unit Audio-Navigation Unit Removal/Installation.