Audio Remote Switch Does Not Work Properly (Without Navigation)

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

Audio remote switch does not work properly (without navigation)

NOTE:

- Check the vehicle battery condition first 12 Volt Battery Test.
- 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 remote switch operation (volume up, volume down, CH +, CH -, MODE).

Is the audio unit operation OK?

YES -

Intermittent failure, the audio remote switch is OK at this time. Check for loose connections.

NO -

Go to step 3.

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

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

Is the audio remote switch OK?

YES -

Go to step 5.

NO -

Replace the audio remote switch, and recheck.

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

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

NOTE: Eject all the discs before removing the audio unit to prevent damaging the CD 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 open or high resistance in the circuit between the audio unit and the cable reel. 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 -

Repair a short to body ground in the wire(s) between the audio unit and the audio remote switch. If the wires are OK, replace the cable reel Service and Repair.

NO -

Replace the original audio unit Audio Unit Removal / Installation.