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Miche2b



Member Since: 15 Nov 2014
Location: Corsica
Posts: 3
France 2007 Range Rover Sport TDV8 HSE Siberian Silver
HDC indisponible

Hello,
Somtimes when i started my tdv8 years 2009 i hav this error message:
-HDC indisponible
-special programs indisponible

But i haven’t problems.
The fonctionnement is normal.

Have you got idee?
Post #616323 Tue Aug 03 2021 7:07am
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RRSTDV8



Member Since: 13 Aug 2011
Location: Northamptonshire
Posts: 8844
United Kingdom 2012 Range Rover Sport SDV6 HSE Orkney Grey

It could be a low battery - check that the battery is well charged.

It could be a brake light bulb - if a bulb blows, it can prevent HDC from working properly and this will also stop the special programs working.

If it's on an occasional error, it could just be an ECU not communicating correctly for a moment. That happens sometimes.

Ideally, have the error codes read by a decent LR garage and make sure there is nothing showing in them. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed
Post #616324 Tue Aug 03 2021 8:15am
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Andy K



Member Since: 18 Sep 2015
Location: GL
Posts: 4788
England 2005 Range Rover Sport TDV6 HSE Rimini Red

Battery old or discharged
Post #616325 Tue Aug 03 2021 9:07am
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Miche2b



Member Since: 15 Nov 2014
Location: Corsica
Posts: 3
France 2007 Range Rover Sport TDV8 HSE Siberian Silver

Hello,
I have changes the battery but the problem was here.
On land rover there reading no default code.
Post #616329 Tue Aug 03 2021 10:10am
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Andy K



Member Since: 18 Sep 2015
Location: GL
Posts: 4788
England 2005 Range Rover Sport TDV6 HSE Rimini Red

does it come on at every startup?
Post #616341 Tue Aug 03 2021 2:31pm
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Miche2b



Member Since: 15 Nov 2014
Location: Corsica
Posts: 3
France 2007 Range Rover Sport TDV8 HSE Siberian Silver

No; sometimes
Post #616342 Tue Aug 03 2021 4:38pm
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Andy K



Member Since: 18 Sep 2015
Location: GL
Posts: 4788
England 2005 Range Rover Sport TDV6 HSE Rimini Red

I would just ignore it.

The battery may not have enough CCA
But if you don’t have other problems, don’t worry
Post #616343 Tue Aug 03 2021 4:47pm
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Mafya



Member Since: 05 May 2020
Location: Sheffield
Posts: 45
United Kingdom 2010 Range Rover Sport TDV8 HSE Lux Buckingham Blue

If you have dynamic response check the fluid level as I had a similar issue and the fluid was low due to a leak in one of the ace bars
Post #616351 Wed Aug 04 2021 1:15am
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