FSportIS

iTrader: (13)

I had the same problem few weeks earlier on my IS350 too. The ebay guy fixed it for $195. I highly recommend him.

http://www.ebay.com/itm/LEXUS-LS-GS-ES-IS-RX-LX-GX-SC-250-300-330-350-430-460-470-NAVIGATION-REPAIR-/181465054878?pt=Car_Audio_Video&hash=item2a4028fe9e&vxp=mtr

gastric

After cycling the vehicle's battery connection the nav and the rest of the car has worked great, no issues or complaints.

Kinman

I experienced this problem this weekend. I was backing up into my parking spot and screen went black. The whole navigation system and side buttons just turned off.

Did a search on this forum, and found this thread, and did the disconnect the battery fix, and it worked!

So happy! Thanks for everyone who posted on this thread!

Gville350

iTrader: (10)

^That might last a little while, but unfortunately it will probably returned. Similar thing happened to me; I actually replaced my battery, and the screen came back on from being OFF. But it was short-lived.

chantra

If Lexus knows that their navigation system have issues, why did they not either have a patch or work with customers to resolve this issue going forward.
I am the same issue with my 06 is250.

Gville350

iTrader: (10)

^My local Lexus dealership, thanks to a skilled Lexus shop worker, now does the NAV systems in-house. Thing is, it was my visit with my problematic NAV and my advice that lead to them exploring this fix.

Corporate won't have to do a thing because it's not a safety issue. Plus, imagine the cost if they had to replace ALL of the NAV systems for a number of model yrs. They're a business, in the business of making money; they're not about to accept every issue as a national recall.

RPMGraphic

iTrader: (1)

anyone ever figure out if this issue is the touch screen or the navi display? I'm finding out that they are 2 separate pieces.

whitebeast

iTrader: (5)

If you have black screen, then two thing you would have to check out.
1. LCD power board which is really rear happen
2. Display driver which is 99.5% failing rate for black screen.

good luck!!!

RPMGraphic

iTrader: (1)

please tell me if i am correct here. this is the LCD power board? http://opuradio.com/products-detail.php?ProId=771 this is what i'm being told is wrong.

where is the display driver?

whitebeast

iTrader: (5)

The linkl you are provide is "Display driver board". LCD power board is the one on the back of LCD
Here it is: https://www.aliexpress.com/item/Free...308.4.7.AzWi3d
Base on my experience, You should buy the display driver board (your link), remove the fan, remove and clean the thermal paste (on heatshink and BGA), apply better thermal paste (frys sale it). putting everything back and you are good to go!!!
Good Luck!!!
IF you need any further info, PM me directly!!!!

2slow

iTrader: (5)

For that price wouldn't you rather buy a navigation screen which will come with everything you'll need in case anything else goes wrong?

RPMGraphic

iTrader: (1)

the screen isn't the problem in this case. trust me, if i could just change the screen i would.

RPMGraphic

iTrader: (1)

i was able to find a used working navi unit for a great price. hopefully it will last for a while. do you know if the board can be fixed once they go bad?

t.is350.h

iTrader: (3)

Hi All,

Sorry for bringing up the old post. I'm having the same issue now, and was wondering if anyone was able to fix the problem by replacing one of the board mentioned above? Any help is appreciated.

Thanks all.

RPMGraphic

iTrader: (1)

If your screen is blank & non of the side button/control work the climate control, then yes. There;s another thread on here where a guy just replaced his & it's back working. The only 2 options are buy te board from china & do it yourself, $320 for the board shipped, or there is a guy on ebay i found that will replace the board & ship your unit back for $450, you have to pay the shipping to him.