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

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 power switch OFF or turn the ignition switch OFF to see if the navigation unit turns OFF.

Is the navigation unit OFF?

YES - Operation is normal.

NO - Go to step 2.

3. Turn the ignition switch to LOCK (0).
4. Remove the navigation unit.
5. Measure the voltage between navigation unit connector A (17P) terminal No. 14 and body ground.






Is there battery voltage?

YES - Check for short to power on PUR wire.

NO - Replace the navigation unit.