Audio Remote Switch Does Not Work Properly (With Navigation)
Audio System Symptom Troubleshooting - Audio remote switch does not work properly
Audio remote switch does not work properly (with navigation)
NOTE:
- Check the vehicle battery condition first Battery Test.
- 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 system, 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 or poor connections at the audio remote, HFL-navigation voice control switch.
NO -
Go to step 3.
3. Do the Audio Remote Switch Test Audio Remote Switch Test.
Is the audio remote switch OK?
YES -
Go to step 4.
NO -
Replace the audio remote, HFL-navigation voice control switch Overhaul.
4. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
5. Disconnect audio-navigation unit connector A (24P).
NOTE: Eject all the disc(s) before disconnecting the audio-navigation unit to prevent damaging the CD/DVD player's load mechanism.
6. Reconnect the audio remote switch, and measure the resistance between audio-navigation 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 7.
NO -
Repair a short or high resistance in the wire(s) between the audio-navigation unit and the audio remote switch. If the wires are OK, replace the cable reel Service and Repair.
7. Disconnect the audio remote, HFL-navigation voice control switch 12P connector.
8. Check for continuity between body ground and audio-navigation 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-navigation unit and the audio remote switch. If the wires are OK, replace the cable reel Service and Repair.
NO -
Substitute a known-good audio-navigation unit (including the HDD) Audio-Navigation Unit Removal/Installation, and recheck. If the symptom/indication goes away, replace the original audio-navigation unit Audio-Navigation Unit Removal/Installation.