Audio System Information Does Not Display on the Audio-Navigation Switch Panel Display (With Navigation)

Audio System Symptom Troubleshooting - Audio system information does not display on the audio-navigation switch panel display

Audio system information does not display on the audio-navigation switch panel display (with navigation)

NOTE:

- Check the vehicle battery condition first Testing and Inspection.
- Check the connectors for poor connections or loose terminals.

1. Remove the audio-navigation switch panel Audio-Navigation Switch Panel Removal/Installation (With Navigation).

2. Check the connections at the audio-navigation switch panel 24P connector and audio-navigation unit connector F (12P).

Are the connectors and terminals connected properly?

YES -

Go to step 3.

NO -

Repair the connection, and recheck.�

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

4. Measure the voltage between body ground and audio-navigation switch panel 24P connector terminals No. 21 and No. 22 individually.





Is there battery voltage?

YES -

Go to step 5.

NO -

Repair an open in the wire between No. 15 (10 A) fuse in the under-hood fuse/relay box and audio-navigation switch panel 24P connector terminal No. 22, or repair an open in the wire between the No. 16 (7.5 A) fuse in the driver's under-dash fuse/relay box and the audio-navigation switch panel 24P connector terminal No. 21.�

5. Measure the voltage between audio-navigation switch panel 24P connector terminal No. 10 and body ground.





Is there less than 0.2 V?

YES -

Go to step 6.

NO -

Repair an open or high resistance in the wire between audio-navigation switch panel 24P connector terminal No. 10 and body ground (G501).�

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

7. Disconnect audio-navigation unit connector F (12P).

8. Check for continuity between audio-navigation unit connector F (12P) and the audio-navigation switch panel 24P connector according to the table.









Is there continuity?

YES -

Go to step 9.

NO -

There is an open in the wire(s) between the audio-navigation unit and the audio-navigation switch panel. Repair or replace the affected shielded harness.�

9. Check for continuity between the audio-navigation switch panel 24P connector and body ground according to the table.









Is there continuity?

YES -

There is a short in the wires between the audio-navigation unit and the audio-navigation switch panel. Repair or replace the affected shielded harness.�

NO -

Go to step 10.

10. Check for continuity between the terminals of the audio-navigation switch panel 24P connector according to the table.









Is there continuity between any of the terminals?

YES -

There is a short in the wires between the audio-navigation unit and the audio-navigation switch panel. Replace the affected shielded harness.�

NO -

Substitute a known-good audio-navigation switch panel Audio-Navigation Switch Panel Removal/Installation (With Navigation), and recheck. If the symptom/indication goes away, replace the original audio-navigation switch panel Audio-Navigation Switch Panel Removal/Installation (With Navigation). If the symptom/indication is still present, replace the audio-navigation unit Audio-Navigation Unit Removal/Installation (With Navigation).�