Audio Unit Power Switch Will Not Turn Off (With Navigation)

Audio System Symptom Troubleshooting - Audio unit power switch will not turn off

Audio unit power switch will not turn off (with navigation)

NOTE:

- Check the vehicle battery condition first Testing and Inspection.
- Check the connectors for poor connections or loose terminals.
- Check for aftermarket accessories plugged info the vehicle's accessory power sockets.

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

2. Push the PWR button off to see if the audio-navigation unit turns off.

Does the audio system turn off?

YES -

Go to step 3.

NO -

Replace the audio-navigation unit Audio-Navigation Unit Removal/Installation (With Navigation).�

3. Push the PWR button on, then turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

Does the audio-navigation unit turn off?

YES -

Operation is normal.�

NO -

Go to step 4.

4. Remove the audio-navigation unit Audio-Navigation Unit Removal/Installation (With Navigation). Disconnect audio-navigation unit connector A (24P).

NOTE: Eject all the CDs before disconnecting the audio-navigation unit to prevent damaging the CD player's load mechanism.

5. Measure the voltage between body ground and audio-navigation unit connector A (24P) terminal No. 14.





Is there battery voltage?

YES -

Check for a short to power on the PUR wire.�

NO -

Substitute a known-good audio-navigation unit (including the HDD) Audio-Navigation Unit Removal/Installation (With Navigation), and recheck. If the symptom/indication goes away, replace the original audio-navigation unit Audio-Navigation Unit Removal/Installation (With Navigation).�