LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Navigation Head Unit Replacement

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Old 05-16-22, 08:25 AM
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mnotojr
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Question Navigation Head Unit Replacement

Greetings ClubLexus! I was fortunate enough to get a very clean '98 LS400 a few months ago, and I have recently run into an issue where my cassette tape is stuck in eject mode and I need to replace my navigation head unit. I figured if I am going to replace it I might as well go aftermarket to get Bluetooth, apple carplay, etc. I've seen a few things online saying that I will need to get the climate control from a non-navigation LS, along with a double-din adapter and of course aftermarket head unit. Has anyone done this before and could give me some fine details? Like what exactly to purchase, etc. This is my first time doing something like this and I can't seem to find anything very detailed for a navigation unit replacement. Any help is appreciated.
Old 05-16-22, 09:44 AM
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timmy0tool
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welcome and always start at the FAQ, where it will point you to the audio setup mother thread (lots of info but dispersed so you will have to read):
https://www.clublexus.com/forums/ls-...er-thread.html

as for the HVAC, it's as simple as obtaining a non-nav HVAC controls but you will need to source non-nav center vent as well:
https://www.clublexus.com/forums/ls-...got-to-go.html
Old 06-11-22, 06:30 AM
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FloridaCam
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I don't know the 98 model but I did replace the head unit on my LS with a Kenwood and keep the climate control unit.
Old 06-21-22, 05:54 PM
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TonyCel1
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Default Blank screen 96 Celsior UCF21

My Nav screen has gone blank in my Celsior. The only thing that works is my AC speed. Touch screen still works but Can’t see or control anything else. Any advise? Easy fix?

Old 06-21-22, 06:17 PM
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Yamae
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Originally Posted by TonyCel1
My Nav screen has gone blank in my Celsior. The only thing that works is my AC speed. Touch screen still works but Can’t see or control anything else. Any advise? Easy fix?
The CCFL or it's drive circuit must be dead. It's not easy to fix for most of us but skilled DIYers would fix it finding failed parts or modifying the backlighing system converting to use LEDs. This is not an exact method for a 96 Celsior but it's quite similar.
https://akipara2.sakura.ne.jp/f816/09.jpg

The whole contents are in Japanese and you can find them here.

Last edited by Yamae; 06-21-22 at 06:29 PM. Reason: To add a link
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Old 06-21-22, 06:27 PM
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TonyCel1
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Originally Posted by Yamae
The CCFL or it's drive circuit must be dead. It's not easy to fix for most of us but skilled DIYers would fix it finding failed parts or modifying the backlighing system converting to use LEDs. This is not an exact method for a 96 Celsior but it's quite similar. https://akipara2.sakura.ne.jp/f816/09.jpg
would it best to convert the backlighting system or try to source another oem nav system?
Old 06-21-22, 11:21 PM
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Yamae
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Originally Posted by TonyCel1
would it best to convert the backlighting system or try to source another oem nav system?
It would be the best to replace the NAVI unit. The Celsior's NAVI unit only has Japanese maps. It only can be used as the A/C settings in USA and others. Problem is it's not simple to do the replacement job. Many people were not quite successful and asked professionals to complete the replacement jobs.
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