Radio/Satnav 'Secure' message

[Grayham127]

I am sure there must be other people who have had this same thing happening.
I stopped for a few minutes the other day. Locked the car by the door handle button. When I came back I unlocked in the same way and my sat nav/radio screen displayed 'please wait' then after about 3 minutes it displayed 'Secure' in a green box. I can get the screen to work by pressing the 'Info' button but this only displays basic information but it does tell me that the screen is working.
I can get the cd's out of the autochanger so that part is working and I can hear the DVD player spooling up and seeking but nothing comes on the screen.
I have tried the usual 'disconnect the battery for 30 mins' then unlock but this worked once but then it stopped again. Also I have just noticed that the Alarm does not sound when I opened the bonnet/hood after one of the resets. (bonnet/hood half closed to trick the alarm button and opened whilst car still locked).
HELP.....

[04pathse]

"Secure" on a green background indicates that there is a problem in the link between NATS IMMU and Audio, suggesting that there is an audio fault or the audio unit has previously been fitted in another vehicle.

When a "Secure" message (of any type) is displayed, it can be cleared by re-initialising the NATS system using CONSULT-II and the immobiliser PIN code, which can only be done at a Nissan dealer.

[Grayham127]

Thank you for this info. None of the components have been changed out so it looks like a trip to the dealer. Do you have a thought over how long they should take on this or is there a standard set charge for the job as my dealer is topping £90 per hour!

[Grayham127]

I have looked under the dashboard to see if there are any loose connections I have found a box with L1 on it and some other numbers. I cannot find any reference to it in the repair manual. Could this be anything to do with the problem?

[Grayham127]

Hi all. Very strange but it all came back to life yesterday! I had decided to leave the repair until I had enough to be able to completely replace the system but what do I do now?
It did this before and worked for a few weeks then stopped again. Any thoughts?