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No connection to high speed CAN bus
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sceh
 


Member Since: 14 Sep 2011
Location: annecy
Posts: 233

France 2011 Discovery 4 3.0 TDV6 S Auto Chawton WhiteDiscovery 4
No connection to high speed CAN bus

Occasionally when I connect to the last tool, I will see a brief message saying no connection to high speed CAN bus and also sometimes another message as it starts up saying 'unsupported vehicle'.

After these messages, all is well.

Any ideas about this behaviour?
thanks
  
Post #22765432nd Feb 2022 11:37 am
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grzesiul
 


Member Since: 11 May 2008
Location: UK
Posts: 6400

Poland 2016 Discovery 4 3.0 SDV6 SE Auto Loire BlueDiscovery 4

what firmware you got on the tool
  
Post #22765842nd Feb 2022 3:07 pm
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sceh
 


Member Since: 14 Sep 2011
Location: annecy
Posts: 233

France 2011 Discovery 4 3.0 TDV6 S Auto Chawton WhiteDiscovery 4

The latest - 2728
  
Post #227972519th Feb 2022 8:54 am
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Flack
 


Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6308

England 2007 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

Make sure the pins in the OB11 socket are not spread open, there are two on either pin, if another cheap diagnostic tool has been used then these have bigger pins on them as to the smaller correct pins on the IID tool, and they open up the gap between the pins so not making a good contac..

Flack Thumbs Up
  
Post #227972719th Feb 2022 9:17 am
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sceh
 


Member Since: 14 Sep 2011
Location: annecy
Posts: 233

France 2011 Discovery 4 3.0 TDV6 S Auto Chawton WhiteDiscovery 4

Today I get this and also can't read all the faults (stops after 5 ECUs) or see all the ECUs
  
Post #228310812th Mar 2022 9:13 am
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