Diesel Data: Automotive Repair

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 for aftermarket accessories plugged into the vehicle's accessory power sockets.
- Check the connectors for poor connections or loose terminals.

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

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

Is the audio-navigation unit OFF?

YES -

Operation is normal.�

NO -

Go to step 3.

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

4. 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 YEL/RED wire.�

NO -

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