Sat Nav not initiating
 

Hi All

Are there any knowledgeable folk on here that might know why a std fit sat nav unit won't start up? Head unit (hi line) does not show the Sat nav as a selectable option on the screen menu?

Cheers

Paul

Have you had any water ingress into the boot area?

Hmm

Don't know. Its a friends car....

Paul,

I've had that once or twice. You could try ejecting the disc and cleaning it. I think I was told by a keen computer friend that the presence of a disc is detected by reading data from it. So no data equals no disc in the warped mind of a computer and the 'option' is removed from the menu.

Simon.

Could be the disc, if not ask him to check the boot area for damp or water ingress. The radio and sat nav modules are beneath the floor near the spare wheel well and can be damaged quite easily by dampness, as i found out last year as had to replace the radio module. :}

cheers Richard

Thanks Simon. I somehow missed your reply!!

Even with a disc problem option should show up and then when selected you get a no disc message.
Can you check if the red light on nav computer comes on and then goes out a couple of minutes after everything has been switched off.
It may just need a battery reset

Yesterday my sat/nav came up no disc / put a disc in then went blank with the sat/nav option not lite up. I took out the disc cleaned and put it back in the option came up but when selected the same thing happened. Before this actually happened the wife said she heard a whirling sound from the unit, the car was parked all on its own without the key in the ignition. any ideas.

Hello Trevor,

It's probably the same thing; the CD is not being read. Mine did this the other day and I think the mechanics need lubricating because I could see that the disc was not being withdrawn properly into the drive.

If the whirling sound was heard after the car had been recently locked, it could be the video module cooling fan which runs on for a period.

If you ever tinker under the bonnet, remember not to disconnect the battery until the sat. nav. computer's red LED has extinguished (it will remain lit for a while after the car was last used).

Simon.