XC70: Stereo/SatNav/Phone - Stereo, Sat Nav and Parking Assist Not Working

Motorhate · Dec 14th, 2018, 19:42

Was out this morning and on starting the car, the stereo which usually starts automatically wouldn't turn on. Tried to manually switch it on but the black and white start up screen flashed up then turned off again. Also noticed that the sat-nav and parking assist alarm isn't working either. Any ideas what this could be? I'm assuming it's not a fuse as they'd have separate fuses.

Thanks in advance!

Motorhate · Dec 16th, 2018, 12:50

Anyone?

ShadeTek · Dec 16th, 2018, 21:55

A good starting point woul be to chceck your fuses to see if any have blown?

Motorhate · Dec 17th, 2018, 12:47

Quote:

Originally Posted by ShadeTek

A good starting point woul be to chceck your fuses to see if any have blown?

I don't think there's a fuse or relay that controls all three is there?

greyheadgit · Dec 17th, 2018, 13:12

Hi Guys

I just bought an XC70 from a V70 and the radio only has static on FM1,2 and 3.
I appreciate it that there a lot of threads on this issue, but could someone tell me where the second FM signal booster box is located. I found the one in the RH side of the boot just under the rear cluster light but no idea where the second one is.
The one I found was not connected to the rear bumper, but even connecting it up and trying another off ebay made a blind bit of difference.

It has the HU850 unit fitted any help would be very much appreciated as I cannot get any traffic news now and have been caught up in traffic twice now!

Thanks

Motorhate · Dec 17th, 2018, 20:04

Managed to fix my problem.

Used the ODB reader and checked for codes. Nothing.

The fuses for the audio unit are located at the back on the left hand side, under the blue compartment. Checked them and they all looked fine.

Next step, which was rumoured to work, but I didn't have much faith was to disconnect the negative terminal from the battery. Did that, left it for a couple of minutes and reconnected it and the radio started working automatically. Sat nav also worked. Didn't check the reverse alarm but it should work.

Kornish72 · Aug 8th, 2020, 22:07

I just bought a C70 with exactly the same faults. I had the whole cd, dash unit & lcd display out today. I dismantled the CD player and extracted 6 cd's. Put it all back together, no joy. Can anyone tell me if the large LCD display is also the computer that controls the actual radio etc?

Motorhate · Aug 17th, 2020, 00:57

Quote:

Originally Posted by Kornish72

I just bought a C70 with exactly the same faults. I had the whole cd, dash unit & lcd display out today. I dismantled the CD player and extracted 6 cd's. Put it all back together, no joy. Can anyone tell me if the large LCD display is also the computer that controls the actual radio etc?

Mate, I would just disconnect the earth terminal for a minute and then reconnect. I think that should fix your problem.

Dec 14th, 2018, 19:42	#1
Motorhate New Member Last Online: Sep 26th, 2023 10:38 Join Date: Nov 2017 Location: London / Kent	Stereo, Sat Nav and Parking Assist Not Working Was out this morning and on starting the car, the stereo which usually starts automatically wouldn't turn on. Tried to manually switch it on but the black and white start up screen flashed up then turned off again. Also noticed that the sat-nav and parking assist alarm isn't working either. Any ideas what this could be? I'm assuming it's not a fuse as they'd have separate fuses. Thanks in advance! __________________ 2008 Volvo XC70 D5 AWD Polestar

Dec 16th, 2018, 12:50	#2
Motorhate New Member Last Online: Sep 26th, 2023 10:38 Join Date: Nov 2017 Location: London / Kent	Anyone? __________________ 2008 Volvo XC70 D5 AWD Polestar

Dec 16th, 2018, 21:55	#3
ShadeTek Premier Member Last Online: Apr 9th, 2024 19:03 Join Date: Dec 2002 Location: Renfrewshire View Photos By: ShadeTek	A good starting point woul be to chceck your fuses to see if any have blown? __________________ Tek-Emo Villis Emo Bis V70 SE NAV 1.6 D2 2015MY POWERSHIFT, D4162T, 86000miles, RED. /VOL FCR/PEPER OBD2/Acron 9135 OBD2/L.E.D Flasher/VDASH/ANCEL BA301

Dec 17th, 2018, 13:12	#5
greyheadgit New Member Last Online: Jan 14th, 2019 10:54 Join Date: Jun 2013 Location: Lincoln	FM just static Hi Guys I just bought an XC70 from a V70 and the radio only has static on FM1,2 and 3. I appreciate it that there a lot of threads on this issue, but could someone tell me where the second FM signal booster box is located. I found the one in the RH side of the boot just under the rear cluster light but no idea where the second one is. The one I found was not connected to the rear bumper, but even connecting it up and trying another off ebay made a blind bit of difference. It has the HU850 unit fitted any help would be very much appreciated as I cannot get any traffic news now and have been caught up in traffic twice now! Thanks

Dec 17th, 2018, 20:04	#6
Motorhate New Member Last Online: Sep 26th, 2023 10:38 Join Date: Nov 2017 Location: London / Kent	Managed to fix my problem. Used the ODB reader and checked for codes. Nothing. The fuses for the audio unit are located at the back on the left hand side, under the blue compartment. Checked them and they all looked fine. Next step, which was rumoured to work, but I didn't have much faith was to disconnect the negative terminal from the battery. Did that, left it for a couple of minutes and reconnected it and the radio started working automatically. Sat nav also worked. Didn't check the reverse alarm but it should work. __________________ 2008 Volvo XC70 D5 AWD Polestar

Aug 8th, 2020, 22:07	#7
Kornish72 New Member Last Online: Oct 2nd, 2021 20:22 Join Date: Aug 2020 Location: Richmond Surrey	Same fault C70 I just bought a C70 with exactly the same faults. I had the whole cd, dash unit & lcd display out today. I dismantled the CD player and extracted 6 cd's. Put it all back together, no joy. Can anyone tell me if the large LCD display is also the computer that controls the actual radio etc?

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