Jump to content
Do Not Sell My Personal Information

Touch and go sat nav not working 2012 Yaris


Recommended Posts

Hi, my wifes 2012 Yaris has the Touch and go sound system fitted, and the Sat Nav side appears to have failed. It works for a short while then locks up with a blank screen and this then effects the normal radio,CD and line in. The other stuff works but with difficulty. I have removed the entire radio SatNav unit from the dash, and opened the SatNav box and checked all of the pc board and multi plug connections under a magnifying glass but can find no problems.

My main question is could I leave the Sat Nav unit disconnected and run the rest of the radio head unit without it?

I have seen the Sat Nav units for sale on ebay, but these days a mobile phone is far better than the original ever was, but I believe the bluetooth also is connected via the Sat Nav unit. Is that correct?

Thanks in advance

Link to comment
Share on other sites

The touch (DA) has bluetooth, as does the nav module - if the nav module is plugged in it disables the bluetooth in the touch (DA)

either could be at fault, It's either heat soak or just the processor/memory starting to fail

you can go into the hidden menu and try a reset on the nav module   under General - Reset extension box



You can also run a failure Diagnostic from the other hidden menu

turn the ignition on

Press and hold the Car button and then turn the headlights on and off 3 times

failure diagnostics - System check

  • Thanks 1
Link to comment
Share on other sites

Thanks for the info Bob, I got into the hidden menus and found several faults listed. I cleared these, but still no joy plus the fault codes repeated. So I have disconnected the Nav unit, and the radio, bluetooth,cd,line in all work fine now. I won't be replacing the Nav unit as the cost is stupid. I have got a Garmin that will do job just as well.


Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...