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Nav/Radio not working
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tommac
 


Member Since: 10 Aug 2011
Location: devon
Posts: 133

United Kingdom 2011 Discovery 4 3.0 SDV6 XS Auto Ipanema SandDiscovery 4
Nav/Radio not working

Hi all,

Back in the fold with a 2010 D4; the radio/nav is not working, the system starts with the landrover logo then turns off, you can hear a relay click, this cycles every few minutes, but screen remains dead.

Ive checked the fuses, which all appear ok.

IID tool gives error code; lost communication with audio unit. If fault is cleared it comes back immediately

Can anyone advise where to look next?
  
Post #228405917th Mar 2022 10:50 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10683

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

I’d be thinking the head unit (thing with CD)
  
Post #228412618th Mar 2022 11:34 am
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thisandy
 


Member Since: 28 Jan 2018
Location: Pembrokeshire
Posts: 307

Wales 2010 Discovery 4 3.0 TDV6 HSE Auto Zermatt SilverDiscovery 4

Check fuses 67 and 68 if you haven’t done so already.
  
Post #228417618th Mar 2022 6:24 pm
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tommac
 


Member Since: 10 Aug 2011
Location: devon
Posts: 133

United Kingdom 2011 Discovery 4 3.0 SDV6 XS Auto Ipanema SandDiscovery 4

thanks for the comments; have triple checked all fuses this am and done a hard reset, still no joy. Thinking i may have to source a replacement head unit- anyone know the variances between part numbers for these?
  
Post #228426819th Mar 2022 12:58 pm
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