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

Audio System Symptom Troubleshooting - Audio-navigation unit power switch will not turn off (with navigation)

Audio-navigation unit power switch will not turn off ('10 model 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 into the vehicle's accessory power sockets.

1. Turn the ignition switch to ON (II).

2. Push the power switch off to turn the ignition switch to LOCK (0) to see if the audio-navigation unit turns off.

Does the audio-navigation unit turn off?

YES -

Operation is normal.�

NO -

Go to step 3.

3. Turn the ignition switch to LOCK (0).

4. Remove the audio-navigation unit Audio-Navigation Unit Removal/Installation.

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





Is there battery voltage?

YES -

Check for short to power on the WHT wire.�

NO -

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