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lounge_on_wheels



Member Since: 10 Dec 2016
Location: in the great land of oz
Posts: 269

Australia 2003 Range Rover HSE Td6 Zambezi Silver
Active Air suspension and HDC warning light

Over the last 2 days, when nearly stopped and hit a slight bump my InActive air suspension warning and my HDC warning lights lit up. After stopping and restarting the engine, doing the wheel lock to lock I cleared the fault.
Could this be a wheel sensor causing this?

Post #434593 11th Apr 2017 12:32pm
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farmercowley



Member Since: 10 Apr 2017
Location: weston super mare
Posts: 14

United Kingdom 2002 Range Rover HSE Td6 Zermatt Silver

the air suspension system seems to be going into minor fault mode, is the light on the hight change button/control coming on in the middle next to arrows? check that, also is abs light and the round arrow light coming onto dash? sounds to me like the car is losing power when your hitting bumps? must be a dodgy connection somewhere (maybe someone with more knowledge could narrow it down where) purhaps behind your EAS controll unit as its also tied to abs and HDA, also test your battery and alternator! low voltage will thru up those faults and many more will come if it is low voltage. keep me updated (y)

Post #434624 11th Apr 2017 4:04pm
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lounge_on_wheels



Member Since: 10 Dec 2016
Location: in the great land of oz
Posts: 269

Australia 2003 Range Rover HSE Td6 Zambezi Silver

Thanks Farmercowley, we have had some real wet weather here and I did go through a large patch of water a few days ago, possibly there is water in one of the connectors. will have to pull a few things to check, Battery is reasonably new, I do have an iid tool so will check voltages and output.

Post #434676 12th Apr 2017 12:50am
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farmercowley



Member Since: 10 Apr 2017
Location: weston super mare
Posts: 14

United Kingdom 2002 Range Rover HSE Td6 Zermatt Silver

Yeah that could well be your issue then. Be aware that when the car loses communication with sensors/electrical components or the air suspension system it will go into a fault mode that only a diagnostics reader will be able to erase just be careful mate (y)

Post #434703 12th Apr 2017 11:36am
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lounge_on_wheels



Member Since: 10 Dec 2016
Location: in the great land of oz
Posts: 269

Australia 2003 Range Rover HSE Td6 Zambezi Silver

I haven't had a chance to have a look as yet, but today they came on again, I connected my IID tool BT to it and it came up with a few of related errors, one was a Can bus communication error, along with others, I did hit a Kangeroo the other weeks also and it did bounce around underneath the Rangie so it might have caused some sensor wire damage, will have to check it out over Easter break, weather permitting ( Roo strike was unintentional,happened a 3.30 AM.)

Post #434779 13th Apr 2017 8:45am
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lounge_on_wheels



Member Since: 10 Dec 2016
Location: in the great land of oz
Posts: 269

Australia 2003 Range Rover HSE Td6 Zambezi Silver

farmercowley wrote:
the air suspension system seems to be going into minor fault mode, is the light on the hight change button/control coming on in the middle next to arrows?

The orange light is on in the push button where the arrows are, pressing the button doesn't make the light go out]

Post #434786 13th Apr 2017 10:32am
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farmercowley



Member Since: 10 Apr 2017
Location: weston super mare
Posts: 14

United Kingdom 2002 Range Rover HSE Td6 Zermatt Silver

If the light won't go out by pressing it then you will need a diagnostics reader to reset the EAS

Post #434977 15th Apr 2017 11:37am
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lounge_on_wheels



Member Since: 10 Dec 2016
Location: in the great land of oz
Posts: 269

Australia 2003 Range Rover HSE Td6 Zambezi Silver

The orange light is now off, I reset all with iidtool

Post #434983 15th Apr 2017 1:33pm
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lounge_on_wheels



Member Since: 10 Dec 2016
Location: in the great land of oz
Posts: 269

Australia 2003 Range Rover HSE Td6 Zambezi Silver

I unplugged the ABS connector at the modulatoer and sprayed the connectipons with aerosol contact cleaner, today "touch Wood" no faults came up Smile

Post #435046 16th Apr 2017 10:53am
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farmercowley



Member Since: 10 Apr 2017
Location: weston super mare
Posts: 14

United Kingdom 2002 Range Rover HSE Td6 Zermatt Silver

Perfect! It's a good feeling when it's all working again! Good luck and I hope it's fixed (y)

Post #435137 16th Apr 2017 11:39pm
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nino_nino



Member Since: 29 Mar 2015
Location: pocitelj
Posts: 690

Bosnia Herzegovina 2012 Range Rover Autobiography Black TDV8 Santorini Black

I use this on all of connectors. Clean connectors with contact cleaner and then apply corrosionX, works like charm. Very Happy



Post #435154 17th Apr 2017 10:03am
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lounge_on_wheels



Member Since: 10 Dec 2016
Location: in the great land of oz
Posts: 269

Australia 2003 Range Rover HSE Td6 Zambezi Silver

farmercowley wrote:
Perfect! It's a good feeling when it's all working again! Good luck and I hope it's fixed (y)

Nope short lived, faults back again., so back to investigations

Post #435382 19th Apr 2017 2:30pm
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UK Marine



Member Since: 22 Jul 2016
Location: Durham, County Durham UK
Posts: 830

England 2003 Range Rover Vogue 4.4 V8 Zambezi Silver

I had a very similar fault to you and it was my ABS module. I swapped it with a used good one then had to recalibrate the steering sensor with my IIDtool as apparently the ABS module and steering sensor swap and store information and if they don't match you get a fault.

All has been well since (8 months)

Good luck.. ______________________________
Simon
______________________________

Range Rover Classic 3.5 efi - Gone
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Range Rover Classic 4.2 LSE - Sadly gone
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Post #435416 19th Apr 2017 6:39pm
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lounge_on_wheels



Member Since: 10 Dec 2016
Location: in the great land of oz
Posts: 269

Australia 2003 Range Rover HSE Td6 Zambezi Silver

This has some good info, the Land Rover technical bulletin on the EAS ECU fault finding
http://greenoval.homeunix.org/l322/tb/LM20...gnosis.pdf

Update, I unplugged the ECU and sprayed contact cleaner on the terminals, and gave the contacts of the white plug a slight scraping inside and refitted, reset the codes it seems to have fixed the problem as the bulletin suggests.

Post #436612 1st May 2017 1:42pm
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