Radio and Navigation system anti theft lock

Yep, when the battery is replaced it can trigger the security system to be engaged. here is a guide to help you reset the system:

https://www.2carpros.com/articles/how-to-reset-a-security-system

Please run down this guide and report back.

My problem is radio and navigation system anti theft lock.
Only car radio and TV was not work.
There is no alarm and no other problem.
I can drive anywhere.
Everything is okay expect TV, DVD and navigation.
Japanese words appear, and it can touch characters (eng/jap) and numbers for typing anti theft code.

Opps, you lost some of the programming. Did the battery cables get reversed or was the battery jumped backwards? Sometimes a voltage spike from connecting the battery cables can cause this as well. Lets run the codes to see what comes up. here is a guide:


https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please run down this guide and report back.

That isn't my problem.
My car is still running. There is no problem except radio, navigation system.
Not for engine. No alarm, no check light.
I mean radio antithef lock.
Can't use radio, dvd player, map and back camera.
Thanks for your answer.
We appreciated that.

It looks like the unit shorted out after charging the battery I am wondering if the voltage was too high causing the issue. Did you try installing the code? Let check the fuses to make sure we are all good there. here is a guide and the fuse locations:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

If the fuses are okay here is how you can remove the radio/navigation for repair. Check out the diagrams (below). Please let us know what happens.