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Fault Code - Auxiliary heater control module B1D29
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CVJase08
 


Member Since: 05 Feb 2018
Location: Warwickshire
Posts: 15

England 2008 Discovery 3 TDV6 XS Manual Stornoway GreyDiscovery 3
Fault Code - Auxiliary heater control module B1D29

Hi Group, can anyone assist please....
I've recently had my LRD 3 diagnosed and fault code store downloaded following an intermittent engine management warning light (orange), this at the same time as replacing the battery.

the only two faults detected were in the:-Auxiliary Heater Control Module
1) B1D29 No start, even after restart attempted - intermittent
2) U1A44 Fuel Level - intermittent

Mr RAC man was struggling to diagnose these but thought at least (1) above was related to the fuel fed cold starter module...

has anyone come across this before and what the fix may be?

thanks in advance for any advice offered..

http://www.disco3.co.uk/gallery/albums/use..._store.jpg

  
Post #197915230th Aug 2018 11:19 am
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10764

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

The first one is quite common, and the first advise is to just clear it. (I think removing the FBH fuse will do this? if you don't have a code reader)

The second. Not sure. But the FBH won't start if the fuel is low (not to waste it) so that's not going to help  
Post #197923730th Aug 2018 4:43 pm
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CVJase08
 


Member Since: 05 Feb 2018
Location: Warwickshire
Posts: 15

England 2008 Discovery 3 TDV6 XS Manual Stornoway GreyDiscovery 3

Thanks Pete, I’ll pull the fuse and try that.. RAC man did try to clear the fault on his PC but it wouldn’t clear..all other faults set after a flattened battery were cleared ok... I may get the unit off and give it a quick recondition...

pulled FBH fuse with no success... tempted to take the unit off and give it a fully clean if poss.. although it wont explain the fuel intermittent fault that's listed on the diagnostics screen....  
Post #197933430th Aug 2018 9:44 pm
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