05 DB9 Nav not working.

[crispyj33]

Hi I am after some advice please.

My Nav screen is not popping up after reading all the info I have checked and done the following.

The DVD drive in the boot is spinning up OK.
I have replaced the gear in the screen as it was knackered.
Before I replaced the gear you could lift the screen by hand but nothing was displayed and the motor would run to try and lower it.

Any ideas on this?

Thanks again Crispy

Ps It has never popped up since I bought the car

[SLacKer]

If I ever Shutdown the Sat Nav the screen goes down and stays down even on the next ignition cycle. Only when I press Back does it come back up.

[crispyj33]

Hi, I have tried all buttons nothing seems to work.

[8Tech]

An 05 DB9 sat nav is probably as useful stuck down as it is working!!

[crispyj33]

8Tech said:

An 05 DB9 sat nav is probably as useful stuck down as it is working!!

You are probably right , if I could a least get it to motor up then I could stick something else there.

[TrackaPhone]

Quick couple of questions first.

I guess that the rest of the infotainment system works OK? If it is then a problem with the fibre optic MOST can be, almost certainly, be dismissed. If the MOST shuts down the screen goes blank.
The raise and lower control is a software command from the centre stack, rather than a voltage on/off like an electric aerial. If there is power at the wiring going to the motor, then it may well be there is no command from the centre stack module when you press the back button. There is a matrix of thin wires at the back of the centre stack which could be damaged if that's been removed at some point with a heavy hand. Fuse 43 at the CEM supplies the Multi Media display (SAT NAV).

I hope may be of some help.

James

[brakedwell]

The same thing happened in my 05 DB9. Turned out to be a Satnav aerial tuning unit failure (In the boot), which cost £450 to replace!

[crispyj33]

Thanks for the info. Yes the rest off the system works fine just the nav. I will check fuse 43 is that in the passenger footwell.

[crispyj33]

brakedwell said:

The same thing happened in my 05 DB9. Turned out to be a Satnav aerial tuning unit failure (In the boot), which cost £450 to replace!

Ouch! I hope it's a fuse

[crispyj33]

TrackaPhone said:

Quick couple of questions first.

I guess that the rest of the infotainment system works OK? If it is then a problem with the fibre optic MOST can be, almost certainly, be dismissed. If the MOST shuts down the screen goes blank.
The raise and lower control is a software command from the centre stack, rather than a voltage on/off like an electric aerial. If there is power at the wiring going to the motor, then it may well be there is no command from the centre stack module when you press the back button. There is a matrix of thin wires at the back of the centre stack which could be damaged if that's been removed at some point with a heavy hand. Fuse 43 at the CEM supplies the Multi Media display (SAT NAV).

I hope may be of some help.

James

Thanks James. Just one more question is the back button solely used to raise the screen , or can I check its functionality on another system.

[TrackaPhone]

I'm pretty sure the back button is for the Sat Nav only, but I'm sure someone will be along to correct me if not......

James

[crispyj33]

Just checked all fuses are ok.

[crispyj33]

brakedwell said:

The same thing happened in my 05 DB9. Turned out to be a Satnav aerial tuning unit failure (In the boot), which cost £450 to replace!

Hi do you mean the unit where the dvd goes ?