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muddy_v8



Member Since: 08 Feb 2017
Location: Hampshire
Posts: 20

United Kingdom 2004 Range Rover Vogue Td6 Baltic Blue
HDC Fault

Evening all, just sorted lots of issue s with my TD6 and wham another problem lol

I have a "HDC inactive" and "Air suspension inactive" fault on permanently. I have "SELECT NEUTRAL" on start up and "SLOW DOWN" when driving popping up on the instrument cluster.

I have read many posts on these and common issues. My battery is the correct rated Bosch battery only a few weeks old. Its now not draining any amps and this happens regardless of temperature. I have read the Tech Bulletin regarding the ABS ECU and doesnt seem to be related as doesnt go away.

Hill decent works fine and the logo comes on. Air suspension works fine although a little slow. Low range DOES NOT work but did and uses this regularly and keep getting the above messages... ALSO no faults in ABS/EAS/Trans using All comms

Any thoughts peeps ??

Post #427474 12th Feb 2017 7:16pm
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Joe90



Member Since: 29 Apr 2010
Location: Hampshire
Posts: 6399

England 

1. Check you haven't got the "towing" fuse in place (37)
2. Tell us a bit more about "won't go into low range" what exactly happens when you try? And when you flick back to high range?
3. Are you getting any ABS fault codes?

Put your battery on trickle charge to bring it bang up to charge. Does HDC INACTIVE still fire off?

What tends to happen is something in the ECU chain is wrong, and causes all the others to fire, some for "safety reasons".

May also be worth a full battery disconnection procedure to see what is there when you reconnect, and also do a full report on your faults (and then clear them) with the All Comms .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember Wink
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

Post #427476 12th Feb 2017 7:26pm
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muddy_v8



Member Since: 08 Feb 2017
Location: Hampshire
Posts: 20

United Kingdom 2004 Range Rover Vogue Td6 Baltic Blue

NICE one mate !!!! Something so simple (if you know)

I had recently been tracking a drain down and had put a 5amp fuse in 37 thinking there had been one in there !! what does that do by the way??

Now to sort my headlight wiper stuck problem (disconnected fuse28) and should be all clear for a few weeks !! haha

thank you again

Post #427479 12th Feb 2017 7:48pm
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alistairh



Member Since: 17 Sep 2016
Location: edinburgh
Posts: 801

United Kingdom 2004 Range Rover Vogue 4.4 V8 Java Black

It's the transfer box ecu fuse, only meant to be fitted when towing.. is it still there?

Post #427485 12th Feb 2017 8:28pm
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alistairh



Member Since: 17 Sep 2016
Location: edinburgh
Posts: 801

United Kingdom 2004 Range Rover Vogue 4.4 V8 Java Black

That's probably why your getting slow down ect messages

Post #427487 12th Feb 2017 8:29pm
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Joe90



Member Since: 29 Apr 2010
Location: Hampshire
Posts: 6399

England 

Fuse 37 to be fitted when BEING TOWED Laughing (and that is 4 wheel towed, it is in the handbook) .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember Wink
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

Post #427530 13th Feb 2017 2:17am
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