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Audio Remote Switch Does Not Work Properly

Audio remote switch does not work properly

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

1. Test the audio remote switch.

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 unit and check the audio unit operation (volume up, volume down, CH (UP), CH (DOWN), MODE).

Is the audio unit operation OK?

YES - Operation is normal.

NO - Go to step 4.

4. Turn the ignition switch to LOCK (0).
5. Remove the audio unit.
6. Disconnect audio unit connector D (32P).
7. Reconnect the audio remote switch, and measure the resistance between the audio unit connector D (32P) No. 3 and No. 19 terminals as specified in the table.






Is the resistance OK?

YES - Go to step 8.

NO - Repair 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.

8. Check for continuity between body ground and the No. 3 and No. 19 terminals of audio unit connector D (32P) individually.






Is there continuity?

YES - Repair short to body ground in the circuit between the audio unit and the audio remote switch. If the wires are OK, replace the cable reel.

NO - Replace the audio unit.