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Rennywuk



Member Since: 09 Apr 2019
Location: Wokingham
Posts: 17

United Kingdom 
Hdc system fault and new starter motor


Hi,

I had a new starter motor fitted by my local mechanic following a dead RRS 2005 SC. Ever since I’ve been getting the hdc system fault and/or the ebrake error. It only lights up on starting the car and clears within a few seconds.

My question is do I need to replace the battery or brake switch?

At the point the car died the RAC tested the battery and the results are above.

Any guidance would be appreciated.

Post #594141 Sat Feb 01 2020 3:21pm
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geoffsnook



Member Since: 19 Nov 2016
Location: cardiff
Posts: 1649

Wales 2005 Range Rover Sport Supercharged HSE Java Black

When was it last replaced(Battery) if you dont know then change it as these don't like low voltage Thumbs Up

Post #594150 Sat Feb 01 2020 6:50pm
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Devon Z



Member Since: 22 Sep 2019
Location: Brixham, Devon
Posts: 37

United Kingdom 2005 Range Rover Sport TDV6 HSE Java Black

I had similar HDC errors when I purchased mine, engine always span over well and stated but kept getting warning lights whilst cranking. Checked the battery voltage while cranking and it was about 9volts, new battery and all is good, still only 10.5volts but no errors and engine spins faster.

Steve 2005 RR Sport 2.7TDV6 HSE, Java Black of course.
1998 Volvo V70 R auto FWD
1999 BMW Z3 (owned from new)

Post #595093 Mon Feb 17 2020 8:37pm
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RRSTDV8



Member Since: 12 Aug 2011
Location: Northamptonshire
Posts: 6808

United Kingdom 2012 Range Rover Sport SDV6 HSE Orkney Grey

10.5V ? Sounds like the alternator is dead. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Post #595096 Mon Feb 17 2020 10:06pm
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aaronjb



Member Since: 26 Jun 2019
Location: Northampton
Posts: 231

United Kingdom 2010 Range Rover Sport TDV8 HSE Santorini Black

10.5V at rest, yes.. 10.5V during cranking, however, seems to be fairly normal - with a brand new battery and brand new Denso alternator (which isn't doing anything during cranking, really). Prior to battery change I also had 9V during cranking and the odd christmas-tree moment Smile

Pretty much all cars will drop well sub 12V during cranking due to the load of the starter - that's why, in days gone by, the ignition coil ballast resistor (which usually drops coil voltage to ~9V) would be taken out of circuit during cranking 2010 RRS TDV8, 2006 BMW 650i, 2007 Mini Cooper S
The TDV8 "replaced" a 2014 Ford Ranger .. I still miss the Ranger.

Post #595168 Wed Feb 19 2020 9:32am
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RRSTDV8



Member Since: 12 Aug 2011
Location: Northamptonshire
Posts: 6808

United Kingdom 2012 Range Rover Sport SDV6 HSE Orkney Grey

Sorry, missed the "cranking" bit in the previous post. Embarassed 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Post #595170 Wed Feb 19 2020 10:26am
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aaronjb



Member Since: 26 Jun 2019
Location: Northampton
Posts: 231

United Kingdom 2010 Range Rover Sport TDV8 HSE Santorini Black

Ah, that'd explain it Mr. Green

Off to specsavers with you! Wink 2010 RRS TDV8, 2006 BMW 650i, 2007 Mini Cooper S
The TDV8 "replaced" a 2014 Ford Ranger .. I still miss the Ranger.

Post #595181 Wed Feb 19 2020 11:37am
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