Junction View, at last.

Some places just don't have that many of them loaded. When I was growing up in Ohio, in a fairly big city, there were no junction view places or even lane assist guidance in the (what used to be) top left corner. But as soon as I went away to college on another state. The junction view and lane assist diagrams popped out everywhere. As the years have rolled on, more and more cities, I feel, are getting the junction view and lane assist diagrams/pictures

I don't know how long ago you're speaking of, but could it be that you had the small Junction View file at that time? When I got my 1450, I was disappointed at how few junction views there were; but once I installed the large Junction View file, the junction views are all over the place.

Phil

As plunder has commented, I have seen a huge difference in how many intersections have the views here in Albuquerque New Mexico between the small junction view file offered for my 855 and the big one that comes to my 3790 (or also the big one for which a link has been offered here at every recent update which can be downloaded to an SD card in my 855). The small one has only a couple, especially the place were two interstates cross each other, while the large one has one for almost every interstate exit.

I am seeing more each time Garmin updates their maps in Arizona.

I have installed the large JCV since my last trip to Reno.Must be why. Thought I just kept missing it. Just thought it was cool I could bring it up looking at the "turn by turn".

Now that I know this, maybe I should do a map update soon.

I do not believe that I have ever installed the large junction files. On most of my trips, there have been a few of them. I looked in the POI files and could not find it. What am I missing? Where to find? thanks

I think I found it in another posting. Downloading and it shows 25 minutes. Does that sound correct? It must be big.

Just ain't that many Junctions to view

Mine was 815,881 KB

Mine shows 797 MB. Fairly close. Ah, it's always the case of someone else is bigger.

Jbees60, I wouldn't necessarily dismiss the difference of size as being insignificant. It's my understanding that if you have the correct large JCV file, it's exactly the 815,881 KB that skoville mentions and its name is D3060130A.JCV. I have a Nuvi 1450 that's the file that I have.

Phil

But then 815,881 KB = 796.7587891 MB, so I suspect jbees60 has the correct file.

Ahh, the dreaded 1024. Anyone with IBM mainframe experience knows the significance of 1024.

Phil

When I look in my documents download, I do see it as 815,881 KB. My only problem now is how do I change it to the 'import file' documents in Garmin. I can't move it from my documents (after download) to the Garmin 'import file' 'documents' to be loaded into my Garmin. Seems that it's one thing after another.

When I was growing up there was no junction view places or even lane assist guidance. Come to think of it, there wasn't even GPS!

You move the file from your computer to the JCV folder on the Garmin. Delete any existing files that may be there first. The fike must maintain the jcv extension.

Box Car; GPS is plugged into computer and I can not find the JCV file until I do a JCV search in Garmin internal storage. Listed is two JCV files, one is about 45 MB (No date) and the other is 24.4 MB, D3153130A.JCV, date modified 2/11/14, K:\.System\JCV
Is that the JCV file loaded with the 2014.4 map update? I hate to delete something that might not come back even with a 'save'. Thanks

jbees60,

I'm assuming that your issue is related to your nuvi 1390 or 1450 listed as your devices since they're the two devices listed in your profile.

1) You devices may be in the mode hiding many files. See:

http://www.poi-factory.com/garmin/problemsolver#system-folde...

You may need your computer and nuvi to be set to show hidden and system files and your nuvi to switch from MTP to MS mode.

If you manually download and install the large JCV file (over 700MB!) and want it to work in your JV-enabled nuvi with a tiny JCV file, in addition to installing the large JCV in the right location, you also need to disable or remove the old small files. A safe way to do this is to rename your current small D******.JCV file to D******.JCV.disabled. Once done, you should be able to use the large photorealistic JCV file in your older nuvi which will gain you: 1) many more junction views, and 2) much better quality JVs.

Shout back if you need more help.

On the nuvi 1450, I couldn't get into developers screen by way of the volumn screen. I got developers info going thru speedometer. Nothing about MTP or MS. I did change the computer items so I can see all files. When I hook up 1450 to computer, the icon is white as stated and I must be in MS. Now I can see the system files and the two JCV files. Should I label both of these files as 'D*****.JCV.disabled', or just the recent small file? This gets complicated. One step at a time. Thanks CraigW

Ah, the 1450 may be a pre-MTP device. (Keep this in mind for your future nuvi which may be a MTP device.)

You shouldn't have two jcv files and it seems that your February map update to 2014.40 somehow forgot to delete the older one. But not a problem. go ahead and rename both small jcv files D*******A.JCV.disabled.

The large jcv for the 2014.40 map update that you recently downloaded probably can go in the jcv folder in your nuvi where the other jcv files were found--or, as I suspect, if it's too big to fit in the nuvi with the latest map, it can go into the \garmin\JCV\ folder in a SD card. As long as the large jcv file is in the proper folder in the nuvi or SD card and that it's the only .jcv file in your nuvi, you should be good to go.

Now either drive or simulate a route along an interstate highway with some interchanges and an exit and see what Junction Views you see. If the large jcv file is active, there will be a shocking improvement to the number of JVs and the images--you can't miss it.

Once all is working well, you can eventually go back in the nuvi and delete the two disabled jcv files (although we always recommend having a hard disk or other backup copy of the files or even the full nuvi). Remember that with each future map update, you will find the map update has installed a small jcv file and you'll need to go through the large JCV download and installation and disabling the small default jcv file. For the past 2-3 map updates, Garmin has been very good about promptly offering the appropriate large jcv file and the availability of the large update and its URL will be announced by someone here either in the thread discussing the new map update or a thread specific to the large JCV, e.g. (for the current 2014.40 map version):

http://www.poi-factory.com/node/42030

I disabled the two JCV files and downloaded the new JCV file into my removable disc. Before this move, I had a lot more available on the K drive but I had to install it to the removable drive on Garmin as it said I didn't have enough room on the K drive. Now when I try a simulated trip, there is no junction views. Before all this, I did do a trial run with a Costco in Reno, NV and one in Cucamongo, CA. Now neither one has a junction view. Before Reno I had at least two while Cucamongo CA had at least eight. I did unplug Garmin and do a restart. What did I do wrong?? I need more suggestions. My trip to Arizona is 4 days away. I might have to revert to the old JCV.

Hi jbees60. Instead of simulating a trip, I open a poi and hit "Go". Then I tap the top bar to get the "turn by turn" list and scroll to the turn that has a junction to see the "photo-realistic" view. On the other hand, you might not have a problem doing a simulation. I had a hard time and thought it was real time consuming, especially when I didn't know if there was a JCV there.I thought this worked very well and left no doubt about a junction.
Like I said, you may do a sim. with no problem. Just a thought.

This is on a Nuvi 2595.

If this helps, I have mine installed on a SD also.There are 6 folders there....

.System
Garmin
GPX
Map
Pictures
POI

In the Garmin folder is where the JVC folder resides with the D3060130A.JCV file.

Maybe that can help.

[/quote]I don't know how long ago you're speaking of, but could it be that you had the small Junction View file at that time? When I got my 1450, I was disappointed at how few junction views there were; but once I installed the large Junction View file, the junction views are all over the place.
Phil[/quote]

I didn't know there was a choice b/w a small JV and a large JV.

Junction View is a real plus when driving an RV through a maze of expressways in a unfamiliar large city ... such as Atlanta.

A quick glance confirms what you were led to believe for Lane Assist ... and that you are really in the right place at the right time.

Glad it's showing up in more places ... for you and for the rest of us.

You should check here more often as the location of the large full screen JCV file is posted here, usually the day of, or a day after, every map update release. Been that way for a few years now.

The large downloadable file is for those devices that only get a small version because of limited storage space on the Nuvi or for those people that get the full split screen version of the JCV file but would rather have the full screen version (view takes up the whole screen instead of just half of it).

Is your K drive the nuvi itself? As expected, the nuvi 1450 will not have sufficient room to hold the large jcv file.

Is your "removable drive" your SD card which will be used in the nuvi? I hope so. As instructed earlier, the large jcv file in the removable SD card must be in the right folder and you will need to manually create this folder before copying the large JCV to the SD card. The SD card needs a folder called garmin and inside the garmin folder, you need a folder called JCV. The large JCV file will go in this \garmin\JCV\ folder in the SD card. It sounds like you did not do this. Give it a try and see what happens. If you just copy the large jcv file to the SD card, your nuvi will not see or use it. And just to state the obvious, files in a SD card will not be seen by the nuvi unless the SD card is installed in the SD slot of the nuvi

If things are not resolved before starting your trip, remember that you can always re-enable the small JCV file by removing .disabled from your February small jcv file.

The nuvi 1450 can definitely install and use the large JCV file, so I hope you don't give up.

Given what you've said earlier, I don't think either of these apply, but two more uncommon reasons for a JCV file not working is that it's either the wrong JCV file (using one from an earlier map update) or that your JCV download was corrupt. In each case, the solution is to delete the JCV file you downloaded to your computer and re-download it. But you've stated your download's filesize earlier and it's right. Just to be safe, can you check and confirm the filename is D3060130A.JCV?

skoville, that is about how I do my trip simulator. But before I start, I have to turn 'on' my GPS simulator and a milage, or feet, shows up in upper left courner and I tap that, then scroll until the junction view is highlighted and tap it.
I found I have less internal memory because the JCV file was installed there also. I had to move it into the system file then into the JCV file with the two disabled files. I redid the trips and the Cucamongo Costco had about the same amount of junction views but the Reno Costco has four more. They look better also. I guess that the JCV file is running OK. I would like to have the big JCV file on my SD card but would have to move the whole JCV file there. Now to delete the big file on my card. Maybe not.
Thanks all for the suggestions to get me on the right path.

CraigW I should have read your latest posting on this subject before my thanks post. What you stated is 'exactly' what happened to me. All of it. Your post might help others too. I will clean up some of my double files and later move the JCV file to the SD card. I'll have to print this out.
Thanks again.

Now you can start having fun again. Once in a while that light bulb above my head goes on and things are rosey again. Sounds like you go to Reno often. Maybe we'll bump into each other (sort of). We had to take our cat into the vets and they wanted us there at 7 am. It was pitch black all the way in and it was our 1st trip there. I would never have gotten there without the GPS. Really have fun with the voice command. LOL

@Craigw
Time for you to turn your instructions about the SD card into a FAQ.

Great information on JCV file

is hit and miss for me. Sometimes it pops up and sometimes it does not when I pass a large highway juncture on my daily commute. I am not sure the real logic behind it that way.

If there is a view picture for a particular junction and you have a route inputted into your GPS that requires that you turn at that junction it will ALWAYS appear on the map screen. If you don't have a route inputted then it should NEVER appear.

Junction View only operates when you are navigating to a destination (or route). Junction view does not pup up if you do not have a destination set.

Edit: Rick was quicker than me

Please comment on the circumstances in which JV "pops up" on your unit.