Audio Remote Switch Does Not Work Properly

Audio remote switch does not work properly

NOTE:
- Check the vehicle battery condition first.
- Check the connectors for poor connections or loose terminals.

1. Test the audio remote switch.

Is the audio remote switch OK?

YES - Go to step 2.

NO - Replace the remote switch.

2. Check the audio unit operation (volume, channel, and mode).

Is the audio unit operation OK?

YES - Go to step 3.

NO - Substitute a known-good audio unit and recheck. If the problem goes away, replace the audio unit.

3. Remove the audio unit.
4. Measure the resistance between the audio unit 20P connector No. 3 and audio remote switch 6P connector No. 5 terminals as specified in the table.






Is the resistance OK?

YES - Go to step 5.

NO - Repair open or high resistance in the circuit between the audio unit and the audio remote switch. If the wires are OK, check audio remote switch ground (G501).

5. Disconnect the audio unit 20P connector and audio remote switch 6P connector.

NOTE: Eject the disc before removing the audio unit to prevent damaging the CD player's load mechanism.

6. Check for continuity between the No. 3 terminal of the audio unit 20P connector and body ground.






Is there continuity?

YES - Repair short to ground in the wire between the audio unit and the audio remote switch.

NO - Replace the audio unit.