sjl

Recently purchased an 2002 SC430 and
have an error on Navigation System which states the following...

DVD

UNABLE TO READ DATA
CHECK IF MAP DVD IS CORRECT

Dealer thinks it an internal failure at navigation ECU. Estimate for repair $1,256.00 OUCH..
Any ideas???

VVTiBob

The first thing that comes to mind...is this an original disc in the reader or a copy. Is it the correct generation disc? Your 02 like mine is a Gen 2/3 system and is only compatible with those discs.

JohnnyCake

What Bob said. Eject the disc in the trunk and tell us what it says on it.

sjl

Not sure what #'s you need to see..
Data 2001 ver.1?

langsdale

i thought we had this talk brother! didnt someone say you needed a new system at lexus? let me know

sjl

Not sure quite yet, dealer thinks it amy be ECU but I am in process of eliminating if just may be the disc. Actually was waiting on response from Johnny Cake.

VVTiBob

If it is an Original Disk it has the following: a blue silkscreen image of the USA with gradient lines from clear in the east to darkblue in the west.

The labeling reads:
DCD VOICE NAVIGATION SYSTEM
USA
86271-47020
464210-5000 followed by a very large upper case D
Data 2000 ver.1 (red added for emphasis)
TOYOTA MOTOR CORPORATION
© 2000 DENSO CORPORATION
© 1999 Navigation Technologies
© GDI, Geographic Data Technologies, Inc
All rights reserved.
Made in Japan
DVD
ROM

Now here's the part that stinks... if someone else upgraded the system's software to a new map set and operating system and then put the old disc back in the system when they sold the car it won't work. It usually takes version 02.1 and later.

Yes

what may have happened is the previous owner bought a newer edition DVD. then when they traded in their car, they took the cd and sold it and replaced it with the original dvd. the problem is, newer versions update your OS, so when you put an older disc back in, it won't work. if this is the case, you can wipe the memory. i don't remember exactly how, but i believe it's as simple as disconnecting your battery for 30 minutes.

sjl

No this one black in color with yellow letters silver lines and partial silver on lower right quadrant. and the following;

DVD NAVIGATION MAP
NORTH AMERICA
86271-33030
464210-0185 followed by a large D
DATA 2001 ver.1

TOYOTA MOTOR CORPORATION
© 2001 DENSO CORPORATION
© 2000 Navigation Technologies
© GDI, Geographic Data Technologies, Inc
All rights reserved.
Made in Japan

langsdale

i worked for Infiniti for years and we could always burn discs and use them (occasionally when we dealer traded a vehicle, this MIGHT accidently happen)
if you need a cheap way to find out, i would check ebay, etc for burnt discs of dif updates and try each one, but i dont know if Lexus's will reject the non OEM disc, but i doubt it. but i dont know for sure. that might be a way to do it on the cheap. i mean face it, we are all friends here.

VVTiBob

Well it sounds like you do have an original disk. But it's maybe not version 2.1 operating system or the correct generation version for your car's Nav System.

I upgraded my system earlier this year. Too many streets in the newer areas of San Diego are not listed from my original 2000 disk that came with the car. (The one I described above.) The new 2009 DVD disc is for the Gen 2/3 system that works with my 2002 SC just fine.

Sounds like you need to take it in and let them use the Lexus DTS Scantool check for trouble codes.

sjl

I'll do that, and look for the 2/3 system. Thank you for your help..

3733ps

Does anyone know how to eject and re-install the navigation DVD in the trunk of my 2002 GS430? It has been working perfectly for years until yesterday. I am getting the same message that reads: Unable to read data - Check if map DVD is correct.

ShawnOk

iTrader: (1)

In the trunk there's a panel that say "DVD Navigation," or something to that aspect. If you remove the white panel, below it is the DVD player. There's a sliding slot that will reveal an "Eject" button and the CD slot. Press "Eject" and the disc will spool out. Clean and reinsert. Hopefully it will solve your problem. Good luck.

3733ps

Thanks. I'll give it a try!