Symptom Troubleshooting

Symptom Troubleshooting: 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. Audio Remote Switch Test

Is the audio remote switch OK?
YES - Go to step 2.

NO - Replace the remote switch. Service and Repair


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, Service and Repair and recheck. If the problem goes away, replace the audio unit.


3. Remove the audio unit. Service and Repair

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

AUDIO REMOTE SWITCH 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 audio unit 20P connector terminal No. 3 and body ground.

Is there continuity?
YES - Repair short to body ground in the wire between the audio unit and the audio remote switch.

NO - Replace the audio unit. Service and Repair