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Rattlehead
Member Since: 31 Dec 2013
Location: Worcs
Posts: 22
  
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| Electrical communication problems - help me! |
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Don't know if anyone can shed any light on this. After a 14 hour round trip yesterday and arriving home on a tow truck I'm close to wits end.
Getting intermittent faults reported. Started off with Suspension failure, ABS/EBD problem and has now escalated to a myriad of faults, I'm losing my fuel gauge, speedo and the entire dash basically - but not the touchscreen strangely.
The car has also got stuck in drive and refused to budge. But if I give it a few minutes, it seems to reset and is moveable again. It's been in with two specialists, neither can find the source of the problem, nor could what is now three AA patrolmen - although they have all said it's showing as a communication fault, clearly the car isn't developing a dozen faults simultaneously.
I've already checked for water ingress and found nothing, everything is bone dry. Really don't know where to go with this now, any suggestions will be gratefully received. Let me know if you need any more info.
Cheers guys,
Rattle 2000 Freelander I Hard Top
2005 Disco 3 SE
2013 Disco 4 HSE LUXURY - current wheels
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 18th Apr 2021 10:11 am |
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ruggedpeak
Member Since: 10 Jun 2010
Location: UK
Posts: 1625
  
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Hopefully some more expert people will be along soon but check your brake light bulbs and battery output just to ensure they are not the culprits. Have seen low battery do some very odd things to D3's.
You can reset the ECU's by disconnecting the battery and touching the battery connectors together, if you have a code reader this might help by seeing what faults appear in what order as they re-emerge. Tony
Club RLD Wheel Protector & Sump Guard
Club 4x4 Info activated
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| 18th Apr 2021 10:57 am |
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Rattlehead
Member Since: 31 Dec 2013
Location: Worcs
Posts: 22
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Checked battery and brake lights, both were fine.
I do have a code reader but sadly it doesn't seem to read the faults, was only cheap. Both the AA and the local LR specialist have shown me the faults their more advanced machines have read - there doesn't seem to be any pattern to it, it just starts with a fault - which is usually, but not always either a supposed suspension or braking problem - then cascades down from there. 2000 Freelander I Hard Top
2005 Disco 3 SE
2013 Disco 4 HSE LUXURY - current wheels
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| 18th Apr 2021 11:25 am |
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Hardware
Member Since: 28 Jun 2016
Location: Hiding under the M60
Posts: 12694
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Battery earth straps? .
Dean
====================================
2011 D4 XS - OBD port protection, RLD spare wheel protector, All LED interiors lights, Timed Climate enabled, iiD tool paired.
2011 D4 Landmark - Stolen from same dealer before I paid for it
2011 D4 GS - Stolen whilst at dealer  ... All LED interiors lights, DRLs, Spare Wheel protector.
1996 300Tdi - Eaten by tin worms
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| 18th Apr 2021 11:27 am |
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Rattlehead
Member Since: 31 Dec 2013
Location: Worcs
Posts: 22
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AA chap took the battery out and checked everything so I'm assuming so, but it's not a question I asked. 2000 Freelander I Hard Top
2005 Disco 3 SE
2013 Disco 4 HSE LUXURY - current wheels
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| 18th Apr 2021 11:49 am |
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SteveKK
Member Since: 11 Apr 2019
Location: North Herefordshire
Posts: 255
 
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You are not a million miles from Alltrack 4x4. If you haven't already it might be worth contacting Tim McKnight there. I've only used them for an MoT so far, but impressed with how thorough they were, with no pressure to book it in with them to fix the advisories. He was happy to provide pointers for DIY fixes.
As already suggested check the earth strap to the engine, as this appears to be a common issue on the later D4s.
Regards,
Steve
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| 18th Apr 2021 1:03 pm |
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Rattlehead
Member Since: 31 Dec 2013
Location: Worcs
Posts: 22
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Thanks, I'll give Alltrack a bell if I can't find a solution. 2000 Freelander I Hard Top
2005 Disco 3 SE
2013 Disco 4 HSE LUXURY - current wheels
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| 18th Apr 2021 5:27 pm |
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M3bobby
Member Since: 21 May 2018
Location: Sleaford, LINCS.
Posts: 857
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Sounds like a CAN BUS fault. Had any work done, however insignificant it may appear? 012MY RRS 5.0 Supercharged Autobiography (Current)
Mods:
TPMS (Complete but got an issue)
Genuine LR DRLs (Complete)
Remote Boot close from key fob (Complete)
2016 Discovery 4 Mirrors AKA RRS2 (Complete)
2014 L405 Surround Camera retro fit (Now 2016 L319)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE (Complete)
2014 LR4 Homelink (Complete)
2016 FFRR Electrochromatic Wing Mirror Glass (Complete)
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| 25th Apr 2021 10:23 pm |
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Rattlehead
Member Since: 31 Dec 2013
Location: Worcs
Posts: 22
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No, had nothing done.
Car is with a local specialist now. He's manged to replicate the fault but it happens for a split second then resets so he's unable to locate where it's coming from. He suspects it's earthing somewhere, but without being to keep the fault on, he can't locate it.
Looks like he's going to have to replace the wiring looms  2000 Freelander I Hard Top
2005 Disco 3 SE
2013 Disco 4 HSE LUXURY - current wheels
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| 26th Apr 2021 2:53 pm |
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M3bobby
Member Since: 21 May 2018
Location: Sleaford, LINCS.
Posts: 857
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When you say earlier that you checked and there wasn’t any dampness, did you just touch the carpet and it was dry or did you lift the carpet to look at the metal floor pan? Many times water gets into the channels under the sill covers and you will never find it unless you actually lift the carpet. The looms for the car run front to back down both sides and the CAN wires run in these. I think the left side is known to cause issues so well worth checking. The insulation/sound deadening is about 1” thick so you can see why you would never find it by touching the carpet alone. 012MY RRS 5.0 Supercharged Autobiography (Current)
Mods:
TPMS (Complete but got an issue)
Genuine LR DRLs (Complete)
Remote Boot close from key fob (Complete)
2016 Discovery 4 Mirrors AKA RRS2 (Complete)
2014 L405 Surround Camera retro fit (Now 2016 L319)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE (Complete)
2014 LR4 Homelink (Complete)
2016 FFRR Electrochromatic Wing Mirror Glass (Complete)
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| 26th Apr 2021 5:41 pm |
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Rattlehead
Member Since: 31 Dec 2013
Location: Worcs
Posts: 22
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Yes, had all the flooring up and it's bone dry. 2000 Freelander I Hard Top
2005 Disco 3 SE
2013 Disco 4 HSE LUXURY - current wheels
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| 30th Apr 2021 7:50 pm |
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