Audio Remote Switch Does Not Work Properly

Audio System Symptom Troubleshooting - Audio remote switch does not work properly

Audio remote switch does not work properly

NOTE:

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

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

2. Turn on the audio unit and check the audio unit operation (volume up, volume down, CH (UP), CH (DOWN), MODE) using the audio remote switch.

Is the audio unit operation OK?

YES -

Operation is normal.�

NO -

Go to step 3.

3. Do the audio remote switch test Audio Remote Switch Test.

Is the audio remote switch OK?

YES -

Go to step 4.

NO -

Replace the audio remote switch Overhaul.�

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

5. Remove the audio unit Audio Unit Removal/Installation.

6. Disconnect audio unit connector A (24P).

NOTE: Eject all the discs before disconnecting the audio unit to prevent damaging the CD/DVD player's load mechanism.

7. Reconnect the audio remote switch, and measure the resistance between audio 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 8.

NO -

Repair a short or high resistance in the circuit between the audio unit and the audio remote switch. If the wires are OK, replace the cable reel Service and Repair.�

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





Is there continuity?

YES -

Go to step 9.

NO -

Substitute a known-good audio unit Audio Unit Removal/Installation, and recheck. If the symptom/indication goes away, replace the original audio unit Audio Unit Removal/Installation.�

9. Disconnect the dashboard wire harness 20P connector from cable reel.

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





Is there continuity?

YES -

Repair a short to body ground in the wire(s) between the audio unit and the cable reel.�

NO -

Replace the cable reel Service and Repair.�