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BCM update
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LR3norway
 


Member Since: 25 Dec 2016
Location: NORWAY
Posts: 193

Norway 
BCM update

Sorry, I guess this have been covered before. But couldn't find it.

Have enabled the 3 flash indicator. This doesn't work. I read that updating the BCM will fix this.
Does the IID tool do everything automatically, or do I have to get a file, download it etc?

Do I need a spare battery connected for this or can the car stay running?

TIA
  
Post #19800392nd Sep 2018 8:30 am
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Narpy
 


Member Since: 18 Jul 2011
Location: Stockport
Posts: 7830

2005 Discovery 3 TDV6 S Manual Cairns BlueDiscovery 3

Fully charge the battery and disconnect the charger.
With the key in position II but with engine not running, try the update.

This worked for me but the battery being fully powered is vital. Thumbs Up
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Post #19800432nd Sep 2018 8:47 am
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LR3norway
 


Member Since: 25 Dec 2016
Location: NORWAY
Posts: 193

Norway 

Thank you Smile is it straight forward with the IIDTool?
  
Post #19800752nd Sep 2018 12:03 pm
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kajtzu
 


Member Since: 10 Aug 2017
Location: Helsinki
Posts: 6538

Finland 2005 Discovery 3 4.4 V8 HSE Auto Cairns BlueDiscovery 3

Very straight forward Thumbs Up

Select from menu BCM and then hit on upgrade, follow instructions after that until complete. The flashing takes a few minutes. Nothing to it, really.
  
Post #19800762nd Sep 2018 12:05 pm
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kajtzu
 


Member Since: 10 Aug 2017
Location: Helsinki
Posts: 6538

Finland 2005 Discovery 3 4.4 V8 HSE Auto Cairns BlueDiscovery 3

While I said nothing to it - please take a moment and look through the IID manual as it describes what to do if the update fails Whistle
  
Post #19800792nd Sep 2018 12:17 pm
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zinke
 


Member Since: 22 Feb 2014
Location: Scunthorpe
Posts: 584

2006 Discovery 3 TDV6 S Manual Zermatt SilverDiscovery 3

Best practice is to have another power supply to the vehicle. I use another vehicle with jump leads connected and engine running, you get a very stable power supply that way and is the cheapest way to do it, assuming you already own jump leads.

Pete.
 IID, webasto software and workshop facility's available.  
Post #19817008th Sep 2018 2:08 pm
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LR3norway
 


Member Since: 25 Dec 2016
Location: NORWAY
Posts: 193

Norway 

Thanks for replying, will give it a try soon. 😀🙈
  
Post #19817948th Sep 2018 8:27 pm
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Flack
 


Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6224

England 2007 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

Never update the BCM without a good power supply.

Flack Thumbs Up
  
Post #19818138th Sep 2018 9:33 pm
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Danos
 


Member Since: 07 Oct 2017
Location: Athens
Posts: 23

Greece 2009 Discovery 3 TDV6 Base 7 Seat Auto Bali BlueDiscovery 3

What is the bcm ? and the 3 flash?
  
Post #20073869th Dec 2018 11:56 am
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kajtzu
 


Member Since: 10 Aug 2017
Location: Helsinki
Posts: 6538

Finland 2005 Discovery 3 4.4 V8 HSE Auto Cairns BlueDiscovery 3

Three flash = nudge the turn signal and it’ll flash three times
BCM = Body Electronic Control Module, the subsystem which needs some TLC
TLC = tender loving care or a upgraded software in this case

Thumbs Up
  
Post #20074039th Dec 2018 12:30 pm
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2seaterhero
 


Member Since: 06 Nov 2018
Location: West Midlands
Posts: 62

United Kingdom 2014 Discovery 4 3.0 SDV6 Commercial Auto Causeway GreyDiscovery 4

This is the beauty of forum's, I never even knew about the 3 flash flick ( sounds slightly dodgy Laughing ) but thanks to you lot I now do and it works. Result Very Happy
  
Post #20075299th Dec 2018 7:29 pm
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kajtzu
 


Member Since: 10 Aug 2017
Location: Helsinki
Posts: 6538

Finland 2005 Discovery 3 4.4 V8 HSE Auto Cairns BlueDiscovery 3

The amount of time the forum saves to spend more money on relevant things is immense Whistle

Thumbs Up
  
Post #20075369th Dec 2018 7:40 pm
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Littlewill
 


Member Since: 14 Sep 2015
Location: Lincolnshire
Posts: 484

England 2015 Discovery 4 3.0 TDV6 HSE Auto Firenze RedDiscovery 4

How often are updates brought out? I was reading the other day that there is one for the transfer box to stop "Californian bang"?? Its the thump you sometimes get when stopping and starting quickly (if you google it do it away from the kids Laughing

The update is to improve gear smoothness or something?
  
Post #20075419th Dec 2018 7:45 pm
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kajtzu
 


Member Since: 10 Aug 2017
Location: Helsinki
Posts: 6538

Finland 2005 Discovery 3 4.4 V8 HSE Auto Cairns BlueDiscovery 3

For D3, my guess is “never”.
For D4, I’d guess “limes never considering end of production happened two years ago”

The update mitigates he issue which is called California stop, driveline thump/slap/bang... I haven’t applied it myself, though, I learned to drive differently hearing of the fix. Whistle
  
Post #20075449th Dec 2018 7:48 pm
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