NAV Incorrect location on map

[Mikeyt46]

Hi all,

I'm hoping someone on here has come across this issue and managed to resolve it.

I bought a Leon only recently, and annoyingly the navigation doesn't show my correct location. I.e. I live near Portsmouth, it's showing on the map as though I live near Newbury, I bought the car from Aldershot!

Things I've done since, updated the firmware was on 0345 now on latest 0369, updated maps on the seat SD card, still wrong location.

I've seen a few people say to reboot the system, I haven't tried this from the power button, but I think the firmware update will have done this already? Let alone just switching the car on and off?
I have a obd reader coming today (going to use car scanner pro as I already had it) to see what GPS signals it's getting and access GEM.

Probably worth noting as well that the compass on the dashboard is completely off, N when I'm heading S.

Anyone got any ideas? It's not the end of the world as I'm planning on unlocking full link anyway, but I'm an Engineer and like problem solving.

 

[DaveS]

I'm sure you will have made sure that there is plenty of sky visible above you when testing the navigation! A faulty GPS receiver is possible. I think it is located in the dash - refer to this thread:

https://www.seatcupra.net/forums/threads/aerial-gps-locator.433471/

The compass is derived from the GPS signals. Could something be blocking or jamming the signal? Some electronics placed near the sensor for example. If you can find yourself a hand held GPS or use a GPS app on you phone you can check for interference. GPS Test in Android will show you the satellite signals.

 

[Mikeyt46]

I'm sure you will have made sure that there is plenty of sky visible above you when testing the navigation! A faulty GPS receiver is possible. I think it is located in the dash - refer to this thread:

https://www.seatcupra.net/forums/threads/aerial-gps-locator.433471/

The compass is derived from the GPS signals. Could something be blocking or jamming the signal? Some electronics placed near the sensor for example. If you can find yourself a hand held GPS or use a GPS app on you phone you can check for interference. GPS Test in Android will show you the satellite signals.

Thanks for the thread link, I'll take a look in a sec.

I'd agree with looking out for those things, including the compass. There aren't any devices around that area.
It it was an intermittent problem, I'd agree, but it just seems the map is 50-60miles off centre, and rotated 180deg constantly.
Driving with it, it thinks I'm driving around Newbury area.

 

[DaveS]

I think a GPS receiver fault is the most likely cause then.

 

[Mikeyt46]

Unfortunately, I think you're correct.

Oh well, I'll see if it's worth changing it.

 

[serdar_18fr]

Unfortunately, I think you're correct.

Oh well, I'll see if it's worth changing it.

Get a cheap GPS receiver with a Fakra connector, like this one, just to see if the problem is in your existing receiver.

GPS Antenna Fakra MFD2 RNS2 RNS 510 MFD3 RNS-E For VW Skoda Benz Audi A3 A4 A6 GPS Receiver Antenna - AliExpress 34

Smarter Shopping, Better Living! Aliexpress.com

nl.aliexpress.com

Disconnect the original from the back of the infotainment unit and connect the new one.
If it does the job, you may keep it or consider replacing the faulty original, if you're a genuine-parts-maniac like me.

 

[Jack91]

I had this after removing and refitting the infotainment system in the glove box, turned out the gps antenna cable was getting snagged on another cable causing a loose connection.

 

[Mikeyt46]

I had this after removing and refitting the infotainment system in the glove box, turned out the gps antenna cable was getting snagged on another cable causing a loose connection.

Thanks for that, definitely worth a try.

Also for the cheaper GPS as well.

I've managed to get the Full Link unlocked now so it's not so much of a priority. But I will update when or if I sort it.

 

[Glosphil]

Use Google maps or Waz on your phone. Both are far supior to the built in sat-nav.

You can connect your phone & have either shown on the built-in screen.

 

[Mikeyt46]

Managed to get the code reader on it today. The only error is "open loop on GPS" so that'll be the culprit.

At some point I'll check the connection. But I won't bother fixing if it's going to cost me money now. Full link and android auto working perfectly well.

 

[Tell]

They all use to go a bit weird on early Formentors with both the attached phone and cars system being incorrect. Slightly dumpfounding that the attached phone showed the infotainment fault . GPS aeriel in your case.

Mib2 will show you the number of satellites it's locked on too. Presume it's on mib3 screens somewhere. You need 10 or so for a good fix. Yours must be well off on low numbers. The newer mib2 standards manage 30 or so. Mib2 highs of the 2015 vintage 10. They lock on too all of the available satellites, US, Russian, European and Chinese these days.

I did use to get people to check the number satellites it was seeing in car and on the phone. Their is phone software for that. That's how one was trying to diagnose the early Formentor fault. Probably that troublesome telecoms box with the call alarm. Pass on how that got fixed.

 

[Pinky]

Out of interest, did you purchase from a dealer?

 

[Mikeyt46]

Out of interest, did you purchase from a dealer?

Private sale for me. I definitely wouldn't have got the deal I did from a stealer

 

[Tell]

The GPS might be someone pulled out the mib unit and didnt plug the GPS cable back in or playing about with the roof line. You dont know with second hand cars what the previous owner has been up to. Coding is one of them. Could have had a hay day with one click apps.