Audio Remote Switch Does Not Work Properly (With Navigation)

Audio System Symptom Troubleshooting - Audio remote switch does not work properly (with navigation)

Audio remote switch does not work properly (with navigation)

NOTE:

- Check the vehicle battery condition first. Testing and Inspection
- Check the connectors for poor connections or loose terminals.
- Audio button operation can be checked by doing the hard key status test in the audio-navigation unit check screen. See navigation system diagnostic mode Navigation System Diagnostic Mode.

1. Test the audio remote switch Audio Remote Switch Test.

Is the audio remote switch OK?

YES -

Go to step 2.

NO -

Replace the audio remote switch.�

2. Turn the ignition switch to ON (II).

3. Turn on the audio-navigation unit, and check operation (volume up, volume down, CH (+), CH (-), MODE).

Is the navigation unit operation OK?

YES -

Go to step 4.

NO -

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

4. Remove and disconnect the audio-navigation unit Audio-Navigation Unit Removal/Installation.

5. Measure the resistance between audio-navigation unit connector A (24P) terminals No. 5 and No. 16 as specified in the table.






AUDIO REMOTE SWITCH TABLE





Is the resistance OK?

YES -

Go to step 6.

NO -

There is an open or high resistance in the circuit between the audio-navigation unit and the audio remote switch. If the wires are OK, replace the cable reel Service and Repair.�

6. Check for continuity between body ground and audio-navigation unit connector A (24P) terminals No. 5 and No. 16 individually.





Is there continuity?

YES -

There is a short to body ground in the circuit between the audio-navigation unit and the audio remote switch. If the wires are OK, replace the cable reel Service and Repair.�

NO -

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