Audio Remote Switch Does Not Work Properly (Without Navigation)

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.

- Check the connectors for poor connections or loose terminals.

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

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

Is the audio system operation OK?
YES - Intermittent failure, the audio remote switch is OK at this time. Check for loose connections.

NO - Go to step 3.


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

Is the audio remote switch OK?
YES - Go to step 4.

NO - Replace the audio remote-HFL switch. Steering Wheel Disassembly/Reassembly


4. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

5. Remove the audio unit. Audio Unit Removal/Installation (Without Navigation)

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

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 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. Disconnect the audio remote-HFL switch 12P connector.

9. Check for continuity between body ground and terminals No. 5 and No. 16 of audio unit connector A (24P) 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. Service and Repair

NO - Replace the audio unit. Audio Unit Removal/Installation (Without Navigation)