RRSPORT.CO.UK

    Forum   Gallery   Shop   Sponsors
Home > Technical > HDC System Not Available
Post Reply  Down to end
Page 1 of 1
 
GaryNZ



Member Since: 05 Jun 2021
Location: Kuratau
Posts: 6

New Zealand 2006 Range Rover Sport 4.4 V8 HSE Chawton White
HDC System Not Available

Hi There, I have seen many posts on this HDC topic but not quite matching my situation. I have recently purchased a 2006 RRS in pristine condition with 137,000kms on the clock. When I have started the car I get the HDC System not Available message immediately for about 5 seconds and then it goes away. No other warning lights or bings or bongs and doesn’t come on during travelling. I have now replaced the battery based on reading a number of threads. The previous one was likely 7 to 10 years old but still coming up good on a battery test. After replacing the battery I still have exactly the same error. Should I be concerned? Any ideas what to look for now? There really are no other errors or faults. Thanks for any help or tips.

Post #614380 Sun Jun 06 2021 5:17am
View user's profile Send private message View poster's gallery Reply with quote
RRSTDV8



Member Since: 13 Aug 2011
Location: Northamptonshire
Posts: 7586

United Kingdom 2012 Range Rover Sport SDV6 HSE Orkney Grey

A blown brake light bulb has been known to cause HDC failure. This is because the brake lights are activated when HDC is actively controlling the brakes, so a lack of brake lights could cause an accident from a rear end shunt.

Does HDC work once the message has extinguished? Select HDC via the switch and drive along at 20km/h and take your foot off the accelerator pedal. HDC should then activate. If you try selecting one of the off road programs - try grass/gravel/snow for example - do you get a warning message saying "special programs not available"? You should do if HDC is still faulty. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Post #614382 Sun Jun 06 2021 7:46am
View user's profile Send private message View poster's gallery Reply with quote
GaryNZ



Member Since: 05 Jun 2021
Location: Kuratau
Posts: 6

New Zealand 2006 Range Rover Sport 4.4 V8 HSE Chawton White

Hi, thanks for your quick reply Smile The HDC system seems to be available as normal once the error message has cleared. I have cycled through the off road programmes and all engage correctly.

The high level brake light may be the issue as it has an intermittent fault and does not always come on. I have checked the wiring which is all ok. I have a replacement brake light assembly coming this week, so let’s see if that fixes the problem Smile I update here in the week. Cheers

Post #614386 Sun Jun 06 2021 9:21am
View user's profile Send private message View poster's gallery Reply with quote
GaryNZ



Member Since: 05 Jun 2021
Location: Kuratau
Posts: 6

New Zealand 2006 Range Rover Sport 4.4 V8 HSE Chawton White

Replacing the faulty/intermittent high level rear brake light has cured the HDC Fault that I was getting Smile Thanks for the pointer RRSTDV8

Post #614613 Thu Jun 10 2021 12:34am
View user's profile Send private message View poster's gallery Reply with quote
RRSTDV8



Member Since: 13 Aug 2011
Location: Northamptonshire
Posts: 7586

United Kingdom 2012 Range Rover Sport SDV6 HSE Orkney Grey

Good news. Thumbs Up

We do like a nice easy fix on here. They don't happen that often! Rolling with laughter Rolling with laughter 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Post #614627 Thu Jun 10 2021 1:34pm
View user's profile Send private message View poster's gallery Post Reply
Post Reply  Back to top
Page 1 of 1
All times are GMT + 1 Hour

Jump to  
Previous Topic | Next Topic >
Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Site Copyright © 2005-2021 Futuranet Ltd & Martin Lewis
RRSPORT.CO.UK RSS Feed - All Forums

Switch to Mobile site