MFD Touchscreen dead + Non-nav swap update

[olivertwist]

The MFD touchscreen on my 2006 LC just became unresponsive to touch. The screen still works fine, and there are no error messages like "External System is not connected" or any of the others that I have seen posted in here. Next I went into the Service Check Mode, and all functions say OK, other than Navi, which came back as Check. I can't access any of the other functions in System Check Mode without the touch working.

Is there a fuse or connector that I can check which affects only the touch function, or is this the beginning of a hunt for a new MFD from the junkyard. What about repair places? If this is repairable, I'm inclined to attempt it myself. Any thoughts?

Finally, I was the fortunate owner of a Non-nav cruiser, which I search for for a long time, and had intentions of doing a build on. Then I got a deal on an already built cruiser from a friend, and decided to take the easy way. I've since sold the Non-nav cruiser to another friend, but still have access to it. My dream would be to install a Non-nav setup into my new 2006 (I know many of you share that dream lol). Has there been any progress in being able to successfully complete a swap? I know @RobRed and others have done a lot of research. Would having access to a Non-nav to check wiring connections have any benefit to completing a custom swap with splicing, rather than replacing the entire dash loom? Deferring to the more experienced folks here, so please chime in. Thanks.

 

[BudgetLC]

Do some research on replacing the digitizer on it. The MFD on my 06 Prius just went wonky. I ordered a replacment one off of ebay for $60. I don't know if the Land Cruiser uses the same one or not but I know that other Toyota/Lexus's do. It will take some research to find out which one you need. I did see one place talking about repairing them by googling LX470 digitizer replacement.

 

[TXSunDevil]

This has been done for the Pre 03 units. What we have done is sourced the non nav controllers from junkyards and using the factory service manual done a rewire. Theoretically this is possible for the 2006 but I think the lack of 2006 non-nav climate controls would be a problem. Do you have access to a 2006 non-nav cruiser? Maybe you could get the part number? i would imagine it would be just like doing a 2002 but you would use the FSM off of the 2006. Maybe you can source the pigtails and climate controls from a 2006 out of Australia or some location where they made them without the nav? Here is the thread that we use to do the conversion.
Pre-03 nav delete how-to

 

[medtro]

The MFD touchscreen on my 2006 LC just became unresponsive to touch. The screen still works fine, and there are no error messages like "External System is not connected" or any of the others that I have seen posted in here. Next I went into the Service Check Mode, and all functions say OK, other than Navi, which came back as Check. I can't access any of the other functions in System Check Mode without the touch working.

Is there a fuse or connector that I can check which affects only the touch function, or is this the beginning of a hunt for a new MFD from the junkyard. What about repair places? If this is repairable, I'm inclined to attempt it myself. Any thoughts?

My 2003 LC touchscreen was unresponsive to some of the buttons. AC and radio buttons were fine. I replaced the disc unit under the passenger seat and that fixed the problem.

 

[olivertwist]

@TXSunDevil - Thanks, I've read many of the Pre-03 threads that you posted in and see that many have successfully completed it. In the 2003+ it seems to be a much bigger challenge, and I have yet to see one completed. I believe the trouble is with the wiring harness, that needs to be fully replaced. No pigtails or splicing?

I do have access to a non-nav cruiser. I bought it in Puerto Rico, and recently sold it to a friend (already regretting it). I think getting the parts is not such a big deal. Here is what I've found:

CLIMATE CONTROL

55902-60110 PANEL SUB ASSY, A/C
55912-60150 HOUSING, HEATER CONTROL
84014-60190 BOARD SUB-ASSY, PRINTED WIRE INTEGRATION
88650-60810 AMPLIFIER ASSY, A/C
55905-60780 KNOB, HEATER CONTROL

CLOCK
83240-60220 CASE ASSY
83265-60220 COMPUTER

Getting full wire harness and removing the entire dash to rewire everything is another story. If anyone has done this, I'd love to hear about your experience.

@medtro - Interesting - I haven't heard of that disc unit. Is there a way to diagnose if that unit is functional before buying a replacement?

 

[TXSunDevil]

@TXSunDevil - Thanks, I've read many of the Pre-03 threads that you posted in and see that many have successfully completed it. In the 2003+ it seems to be a much bigger challenge, and I have yet to see one completed. I believe the trouble is with the wiring harness, that needs to be fully replaced. No pigtails or splicing?

I do have access to a non-nav cruiser. I bought it in Puerto Rico, and recently sold it to a friend (already regretting it). I think getting the parts is not such a big deal. Here is what I've found:

CLIMATE CONTROL

55902-60110 PANEL SUB ASSY, A/C
55912-60150 HOUSING, HEATER CONTROL
84014-60190 BOARD SUB-ASSY, PRINTED WIRE INTEGRATION
88650-60810 AMPLIFIER ASSY, A/C
55905-60780 KNOB, HEATER CONTROL

CLOCK
83240-60220 CASE ASSY
83265-60220 COMPUTER

Getting full wire harness and removing the entire dash to rewire everything is another story. If anyone has done this, I'd love to hear about your experience.

@medtro - Interesting - I haven't heard of that disc unit. Is there a way to diagnose if that unit is functional before buying a replacement?

You already know the parts you need that is a great start. When we did ours we also got the pigtails that come with the parts to make the splices. These pigtails were purchased out of junkers but could have been made using the Toyota terminals. Have you looked at the electrical FSM of a 2006? If you look at the 2002 FSM you can see they provide the wiring for both the NAV and Non-Nav

This is just posted for an example but it you look at Terminal GND on the AC amplifier you see that it has 2 different wires. On one version it is plug G11 on the other it is D22. On our conversions we just went through the FSM and changed the wires where they were indicated. What makes you think the entire harness would need to be replaced? I would love to see y'all be able to convert to the non-nav. I would buy a newer one if I could keep my Double DIN. I think the 1st step would be to find a 2006 electrical FSM and see if they have the wiring as shown above. It may not be the US version of the FSM where it can be found if none of the US vehicles were shipped without the NAV. Please let me know if I am not making sense.

 

[medtro]

@medtro - Interesting - I haven't heard of that disc unit. Is there a way to diagnose if that unit is functional before buying a replacement?

Sorry I don't have any diagnostic info on this.

 

[TXSunDevil]

I just did some preliminary research into this. I could only find a 2004 LC wiring diagram online. It appears to be very similar to the 2002 conversion. It looks like the 2004 LC with your style of navigation can be used as a non nav by using all of the same plugs except plug M9 which is Toyota part #90980-12094. The 2004 Nav and Non-Nav share Air Conditioning plugs A45, A46 and A47 which are Toyota part #s A45-90980-12170 , A46-90980-11913 and A47-90980-11927 They also share radio plugs R36 part# 90980-12038 , R37- part# 90980-12183 and R38 part #90980-12259. It looks like you may need to extend the wiring because the nav plugs are up a little higher than the new control. I can't imagine there is too much difference between the 2004 and the 2006. I saw Ebay sells the Double DIN conversion kit so you would just need the heater control and the display up above. I also found all of the part numbers online using a Toyota dealer webpage. They give you part numbers for non-nav vehicles. You could be the pioneer on this venture!!

 

[Higgin]

The MFD touchscreen on my 2006 LC just became unresponsive to touch. The screen still works fine, and there are no error messages like "External System is not connected" or any of the others that I have seen posted in here. Next I went into the Service Check Mode, and all functions say OK, other than Navi, which came back as Check. I can't access any of the other functions in System Check Mode without the touch working.

Is there a fuse or connector that I can check which affects only the touch function, or is this the beginning of a hunt for a new MFD from the junkyard. What about repair places? If this is repairable, I'm inclined to attempt it myself. Any thoughts?

Finally, I was the fortunate owner of a Non-nav cruiser, which I search for for a long time, and had intentions of doing a build on. Then I got a deal on an already built cruiser from a friend, and decided to take the easy way. I've since sold the Non-nav cruiser to another friend, but still have access to it. My dream would be to install a Non-nav setup into my new 2006 (I know many of you share that dream lol). Has there been any progress in being able to successfully complete a swap? I know @RobRed and others have done a lot of research. Would having access to a Non-nav to check wiring connections have any benefit to completing a custom swap with splicing, rather than replacing the entire dash loom? Deferring to the more experienced folks here, so please chime in. Thanks.View attachment 1600403View attachment 1600404

OliverTwist.....Just curious......take a look at the 1st picture that you posted of the screen. It looks like there could be a crack in a semi-circle shape on the left side of the screen. That would cause the screen to become non-responsive. I know because my 06 LX470 has a crack in almost the exact same place, and my screen is almost non-responsive to touch. Occasionally when its really cold, I can get something to select on the far right side, but usually nothing will respond to touch. Screen displays just fine and you really cant see the crack until the truck is off and the light hits it right. It was like that when I bought it......it was very cold when i bought it and i was able to hit the "ok" button or whatever and I really didn't check the nav beyond that. Lesson learned. Anyway, if you are going to replace just the screen itself, I'd love to be updated on what it takes to do it/cost. I haven't really been able to find any info on changing the screen yourself, but I was able to find a company located in California that quoted me $400 to have them replace the screen. You ship them the whole unit, they replace screen, test it out, ship back. They said to was normally only a 1-2 day turnaround. If you want info on the company, let me know. I haven't done it yet because honestly, you don't HAVE to use the screen, and I hate to spend $400 on it. But if they can do it for $400, I imagine anyone can do it at home for at most half of that if you can source a screen and the instructions on how to do it. Eventually I'll get around to replacing it one way or another, but i'll keep an eye on this thread to see what you find about the non-nav setup.

 

[olivertwist]

@Higgin - whoa.. good catch. I didn't notice that crack previously, but I just went and checked and it is definitely there. Very thin hairline crack.

As @BudgetLC suggested, I looked into the digitizer replacement, and just ordered one on eBay for $80.
LTA070B054F Navigation 7-inch LCD Screen TFT Touch Panel Display Toyota-Lexus HB | eBay

I also found video on youtube of someone disassembling the unit and getting to the screen.


I already took it apart today, and it was pretty simple. Definitely worth trying rather than spending the $400 to have someone else repair it.

@TXSunDevil - interesting info, I appreciate it. I've asked RobRed to share some of his research, and I'm going to dig into the wiring a bit to see how feasible a one off swap is. 2004 and 2006 should have the same wiring.. I don't want to be that Pioneer that ends up face down in a ditch with arrows in my back! lol.

 

[Higgin]

Haha, yeah, imagine my anger when I'm about an hour and a half on my way home from purchasing, decide to try out the nav and can't get anything on the screen to work, then realizing there is a crack in it. Oh man, FUMING! But live and learn I guess. Definitely will not make that mistake again!

Please update the thread on how the new ebay screen works out! Watching that video, you are right, lots of screws to keep track of, but nothing I shouldn't be able to tackle. I just assumed the screen was some super-special thing that had to be set up just for that nav system with software drivers and such. I was probably way overthinking it. If its just take it apart and then the screen is plug and play, that will be great! If you can take some pics of the process, I would greatly appreciate it. I haven't found any other threads about anyone replacing just the screen on one of the newer 100 series models. Thanks for the info so far and any more you can provide when installing!

 

[jerryb]

I've studied a bit, a lot actually, and far as I can tell getting these parts is the problem. The wiring part should be very easy. I did some more looking when Mr Paul asked a few questions about his non nav. If you have access to those parts you should take them. If you get them and want to sell them I'll buy them.

edit I want to post these here so I can get back to them

CLIMATE CONTROL

55902-60110 PANEL SUB ASSY, A/C $143 partsouk
55912-60150 HOUSING, HEATER CONTROL, NA at partsouk $12 mcgeorgetoyota
84014-60190 BOARD SUB-ASSY, PRINTED WIRE INTEGRATION $326.50 partsouk
88650-60810 AMPLIFIER ASSY, A/C NA at partsouk for $362 ??
55905-60780 KNOB, HEATER CONTROL $44 partsouk

CLOCK
83240-60220 CASE ASSY 41$ $37.36
83265-60220 COMPUTER 188$ $180.61
DD fascia Double Din Car Raido Facia for LEXUS LX-470 TOYOTA Land Cruiser 100 2003-2007 | eBay $28

Замена панели управления климат-контролем.
new alt# : 55900-6A061 (+ 88650-60821 - climate board) Климат-контроль Lexus LX470 и Toyota Land Cruiser 100 pic link

 

[olivertwist]

@jerryb - I'm kicking myself for selling my 2007 non-nav cruiser! But I think I can locate all of those parts. Might take some time.

@Higgin - I'll report back with some pics once the screen arrives and I have time to get it installed.

 

[TXSunDevil]

I've studied a bit, a lot actually, and far as I can tell getting these parts is the problem. The wiring part should be very easy. I did some more looking when Mr Paul asked a few questions about his non nav. If you have access to those parts you should take them. If you get them and want to sell them I'll buy them.



edit I want to post these here so I can get back to them

CLIMATE CONTROL

55902-60110 PANEL SUB ASSY, A/C
55912-60150 HOUSING, HEATER CONTROL
84014-60190 BOARD SUB-ASSY, PRINTED WIRE INTEGRATION
88650-60810 AMPLIFIER ASSY, A/C
55905-60780 KNOB, HEATER CONTROL

CLOCK
83240-60220 CASE ASSY
83265-60220 COMPUTER

I have started looking into this today and I agree with you @jerryb This looks very similar to the 2002. You stated getting the parts is the problem? Is finding the reasonable prices the problem or the availability from Toyota? I googled the numbers and got prices. They were expensive but it looks like they were available. What you can do to offset the cost is sell back what you have now. The TV and stereo on Ebay will probably get most of that money back. Just a thought. I would love to help in anyway I can on making this conversion a reality for all of you 2003-2007 Nav owners. I keep thinking somewhere overseas they have junkyards with those parts and some fellow Mud members could find them over there.

 

[olivertwist]

@TXSunDevil - I think you're right, the initial deciding factor for most is the cost of ordering through Toyota. Based on the list of needed parts, I gather it's about $1,700? The parts schematics are a little challenging to read, so I'm not yet sure that my list is comprehensive. For starters, I've e-mailed about half a dozen junkyards/parts recyclers in Australia, to see if I can source them that way. Initially I thought I could get them from Europe (I have family in the dealership business in Austria), but they only sold the Prado Land Cruisers there. Anyways, if Australia doesn't pan out, there's always Hawaii and Puerto Rico (My 2007 Non-nav was imported from Puerto Rico).

If sourcing used parts isn't feasible, I'm willing to buy them direct from Toyota. I like your thought of recouping some of the cost by selling the Nav setup on eBay. Between the center controls with screen, and the nav disc unit under the passenger seat, I bet you could recoup $1,000-$1,5000.

From there I'll definitely need help in figuring out the pinout as you have done for the Pre-03 spreadsheet that is in the forums (great resource btw). I have the 2004 FSM, but to be honest, am a bit overwhelmed with all the schematics.

Anyways, I'll start with the hunt for parts, and we'll take it from there.

 

[TXSunDevil]

@TXSunDevil - I think you're right, the initial deciding factor for most is the cost of ordering through Toyota. Based on the list of needed parts, I gather it's about $1,700? The parts schematics are a little challenging to read, so I'm not yet sure that my list is comprehensive. For starters, I've e-mailed about half a dozen junkyards/parts recyclers in Australia, to see if I can source them that way. Initially I thought I could get them from Europe (I have family in the dealership business in Austria), but they only sold the Prado Land Cruisers there. Anyways, if Australia doesn't pan out, there's always Hawaii and Puerto Rico (My 2007 Non-nav was imported from Puerto Rico).

If sourcing used parts isn't feasible, I'm willing to buy them direct from Toyota. I like your thought of recouping some of the cost by selling the Nav setup on eBay. Between the center controls with screen, and the nav disc unit under the passenger seat, I bet you could recoup $1,000-$1,5000.

From there I'll definitely need help in figuring out the pinout as you have done for the Pre-03 spreadsheet that is in the forums (great resource btw). I have the 2004 FSM, but to be honest, am a bit overwhelmed with all the schematics.

Anyways, I'll start with the hunt for parts, and we'll take it from there.

Ebay has the Electrical FSM for under $20 for most years. This would be invaluable to have for the year in question. Just for reference when I did my conversion and sold the parts even after purchasing the new stereo and speakers I made $500 on the project. I was willing to pay up to 1K to get the double din but I came out ahead. I sold the factory amp, factory tape player, tv screen, bezel and the navigation player under the seat.

The pinout is not hard depending on your level of electrical experience. I can walk you through it if needed. It is a matter of finding what wires go where. Once you understand exactly what you are trying to do and what terminals you will be working with it is much easier.

 

[jerryb]

Mostly I just meant that finding that bottom unit and top glass/clock unit used is impossible as far as I can tell. I looked all over for a few hours for used, especially for Pauls stock radio, and then the other stuff. I've already moved the screen in mine So for me that's another 1500$ to make it look prettier and get back my center console space. At that point I'm in for 3000 including new stereo stuff. Now it's just a cosmetic thing to switch to non nav. Others I'm sure will find it more useful. I want to do it for half price, or 800

I've already sold all my used stuff off this year, nav ecu, radio, amp, back up cam ecu - that's worth about 600 or so. I still have the nav ecu available. No one wants those, or at least demand is pretty low @150$
I'm really interested if someone finds a used supply, should probably buy all of them.

olivertwist, I'm sorry I trampled your thread.

 

[olivertwist]

@jerryb - Nice find on the Russian site.. wish I could read it. Bet there's some good info there - and a market I hadn't considered for used parts. I'll let you know if I come across any used supplies.

 

[jerryb]

I got some prices and spent a few hours this morning.

CLIMATE CONTROL

55902-60110 PANEL SUB ASSY, A/C $143 partsouk
55912-60150 HOUSING, HEATER CONTROL, NA at partsouk $12 mcgeorgetoyota
84014-60190 BOARD SUB-ASSY, PRINTED WIRE INTEGRATION $326.50 partsouk
88650-60810 AMPLIFIER ASSY, A/C NA from part souk for $360. I don't think this is needed* someone check. otherwise 525$ somewhere.
55905-60780 KNOB, HEATER CONTROL $44 partsouk

CLOCK
83240-60220 CASE ASSY $37.36 mcgeorge
83265-60220 COMPUTER $180.61 mcgeorge
DD fascia Double Din Car Raido Facia for LEXUS LX-470 TOYOTA Land Cruiser 100 2003-2007 | eBay $28
M9 which is Toyota part #90980-12094 $5.50 mcgeorge

 

[TXSunDevil]

Have you started working up a pinout chart yet? I am not real good with excel but I can start writing them out