Navigation system malfunction?

[Terpnut]

You guys know I have been the No. 1 complainer about the Nav system "safety" and am standing ready to contribute my efforts to disable it!

[riff]

I'm game too. Someone assign the # blocks and we'll get crackin' !

[snaayk]

Let's Do It...Here or a new thread??

Bad news..the combinations are from 999 to 99,999, that's 99,000 combinations!! I suspect we can skip the 3 digit numbers.

It will take up to five numbers! Yikes! Where's that Chap that provided the code to begin with? Maybe he'll give us a range to start with!

I'm still game, we can assign in 50s and go from there. With enough people it wouldn't be too bad. Perhaps the other cars with the same system will be willing to help out also.

[sgilbert]

I thought there were only 4 spaces; therefore 1000 thru 9999= 8999 combos (unless there could be 0's first meaning 9999 combos. That's only 100 people @ 100 each.

Again, what happens when the unthinkable happens, and the whole unit starts smokin' ?

Where's Joe??

[snaayk]

I wish..there ar 5 spaces, and it will accept pins starting at 000. Although I think a 3 digit pin is unlikely. But u never know.

Joe? Where are you Joe? We need your help Joe?

[doncapecod]

Hi, it's "dumbguy" again. When testing code numbers to see if Nav will operate when moving do you put a code in when the car is stopped and then move the SRX, or can you try the different codes when moving.

Reason I ask is that I'm driving from Florida to Cape Cod in a couple of weeks and if it involves not stopping each time, I can test codes for 25 hours Someone let me know. Don

[snaayk]

You can do it while driving. In fact I usually get into the map try to make a change and keep trying the different pins and see if the buttons become active.

OK, so you're in charge of 2000-10,000 :P I hope we figure it out soon, I had to stop the car to find a starbucks this morning...

[riff]

How do you go about finding a Starbuck's - just out of curiosity? Would saying "I'm Hungry" display a Starbucks even though it's not really a place to eat?

[snaayk]

Hmm...didn't think of that I did the following:

1. Route
2. Enter Destination
3. All Location?? (the little bridge icon)
4. Type in the name "Starbucks"
5. List and pick one by looking at the miles.

I had about 80 locations come up. One was 800 miles away!!! What's funny is the way they name themselves. They get broken up into groups: Starbucks, starbucks coffee, starbucks cof, starbucks coffee co, etc..

What's cool is that I know use that as my 411 (directory assistance), once you select the place, a little info button comes up that will show the full address and phone number.:coolgleam

[andymfreemont]

Regarding the safetly lockout feature, here are my thoughts...

1. In the software of the nav system there is a set of features that will always be available, moving or not, and another set that will be disabled when the vehicle is moving.

2. How does the nav system know that the vehicle is moving. Well, let's think.
a. It could use a changing GPS signal, but this is not likely because GPS reception cannot be considered a reliable enough criteria. For arguments sake, lets just forget about this one.
b. It could use a vehicle LAN signal to determine the transmission gear selection position and lockout a feature set if the car is not in park. Listening to the experiences of the previous posters, however, this does not appear to be the case. Even if this is the case, it's the hardest to deal with because faking the gear message is probably dificult and might make more important parts of the system mad.
c. The last, and most likely method from what I can guess, would be to use the VSS (vehicle speed signal) information to determine if the car is moving. This is probably also how the nav system is able to so smoothly (well, kinda) update the movement of the car on the map. The VSS is a pulse of varying frequency depending on the speed of the car. So it makes sense that for a speed range of let's say 0-150mph, slow speeds would result in garbage VSS pulses because of the long period between these pulses. So maybe the nav won't respond well to pulses under, say, 4 or 5 miles per hour. This would match pretty well to the experiences of the previous posters. Forward, reverse, it doesn't matter, the speed it just a pulse, there must be another message (i don't know, maybe that gear selector message) that will let the nav know that it should move the car icon backwards on the map. Forget about reverse, we don't really need to use the nav features which are locked out while in motion while going backwards faster than 5 miles per hour, i think we could all agree on that.

3. Removing the method of vehicle motion detection that controls the lockout feature will let you use whatever you want. Great, how? HERE'S HOW:
Find the VSS wire that goes to the nav. Cut it. Install a simple switch that will "open" or "close" the line to the nav. See if by flipping the switch you will be able to use the lock-out features. Keep in mind that by "turning off" the switch, the nav probably won't track the car quite as well. So, here's how you'd have to use it...

Mount the switch neatly on the cluster or dash area of your car. When you want to use the lockout features, flip the switch. Do your thing. Set the switch back. Yes, it's pretty ghetto but I'd rather not sit on my ass waiting for some OEM supplier jackass with no balls to leak some little trick that probably doesn't even exist anyways.

4. Alternatives, change the code in the nav system to disable this feature. Good luck. Find a "secret" mode that will allow you to override the lockout. Also, good luck.


I drive a 1993 Dodge Caravan. I don't have a nav system. If anyone would like to send me one, that would be pretty cool but I'd probably break it within the first five minutes.

Peace.

[Terpnut]

The SRX's nav system probably does not have any relation to the transmission, as it will enable or disable the safety while in "Drive" depending on the vehicle's speed. So clearly, the nav system has some sort of speed detection--most likely the GPS. If however it is the "VSS", it certainly would be possible that disabling it would do the trick. Of course, we would then lose one of the best features of an integrated, OEM nav system--it's "dead reckoning" capability that allows it to continue functioning for short periods in poor weather, cities with large buildings and other obstructions (e.g. New York or Chicago), or in tunnels.

[andymfreemont]

Originally Posted by Terpnut

Of course, we would then lose one of the best features of an integrated, OEM nav system--it's "dead reckoning" capability that allows it to continue functioning for short periods in poor weather, cities with large buildings and other obstructions (e.g. New York or Chicago), or in tunnels.

Only for the short time when the switch is "open" and you're playing with the lockout features. Then, when the switch is "closed" the system will update the vehicle's location with the GPS data and continue on its merry way.

[Terpnut]

I see what you are saying now--Close the switch only when a user needs to disable the "safety" so he/she user can access the full functionality. Then open the switch to restore the navigation system's default state (including the dead reckoning).

[andymfreemont]

Originally Posted by Terpnut

I see what you are saying now--Close the switch only when a user needs to disable the "safety" so he/she user can access the full functionality. Then open the switch to restore the navigation system's default state (including the dead reckoning).

Bingo, bango, ghetto!

[DTS]

RE: NAV in motion. I posted a reply in the other thread saying that I tried 0000-0100 and nothing came up. Let’s keep trying.