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sceh
Member Since: 14 Sep 2011
Location: annecy
Posts: 233
  
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I might add they also suggested I go to another garage
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 24th Jan 2022 5:15 pm |
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sceh
Member Since: 14 Sep 2011
Location: annecy
Posts: 233
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and that I would have to leave it for two weeks
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| 24th Jan 2022 5:27 pm |
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Gary_P
Member Since: 03 May 2016
Location: Kent
Posts: 1670
 
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I sense things are getting desperate for you and there have been no responses coming forward which is unusual.
I don't like to see anyone struggling , since I have had some very timely help from this forum and words of encouragement so I knew I wasn't in it on my own. I have very little experience but offer the following thoughts which perhaps others may want to comment on:
1. Have you done a thorough search on this site for similar problems ? I have had a bit of search and there are some similar 'lots of fault lights' issues.
2. As you have so many error lights it must be a common component, so perhaps it is an electrics problem of some sort. A loose connector? A break in a common cable/wire somewhere? Are you able to check for these if not already?
3. Could this be associated with a Bad Earth? Have you tested this?
4. Would a hard reset help?
5. Is the Brake switch tested as good?
6. Have you sprayed any water or got the engine bay wet recently?
Keep going and keep us informed , and do a good search for ideas if not already
Sorry I cannot offer more concrete experience or help
Good luck
Cheers Gary
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Discovery 4 HSE 2016MY
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| 24th Jan 2022 10:36 pm |
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Gary_P
Member Since: 03 May 2016
Location: Kent
Posts: 1670
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Just re-read your first post. Apologies, it appears you have already worked your way through most of my list. Gary
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Discovery 4 HSE 2016MY
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| 24th Jan 2022 10:38 pm |
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sceh
Member Since: 14 Sep 2011
Location: annecy
Posts: 233
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Indeed it is curious given that so many people have had similar problems for 20 years and of course my garage says it has never heard of this before but they are taking the usual 'its your fault' tack we know an love. There again they didn't know all LR4s have auto boxes either. The only thing remotely electrical was changing the headlight bulbs in September and I did poke around in the fuse boxes to find if there was a fuse (no..) and may have dislodged something. I am going to have a good look today. I did remove and replace the headlights to change the bulbs of course so I will look again there.
I actually went to a scrapyard yesterday to get it crushed but they were shut..
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| 25th Jan 2022 8:14 am |
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sceh
Member Since: 14 Sep 2011
Location: annecy
Posts: 233
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I will also post this separately btw
In September I had both front headlights with blown bulbs. After trying to find and check fuses (there aren't any btw since they use MosFet) I changed the bulbs and though nothing of it since the lights worked. I never questioned why it happened and put it down to happenstance.
Then I read this string:
https://www.disco3.co.uk/forum/suspect-ele...ult+lights
They say it is the HCM which cause all their problems. Where is the HCM and how do I test it please?
If it turns out to be this a large bottle of champagne will be posted for sure!!
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| 25th Jan 2022 10:56 am |
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sceh
Member Since: 14 Sep 2011
Location: annecy
Posts: 233
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I also had this a bit later:
btw, I had a random DTC code:
B1D01-15 Right Low Beam -
Circuit short to battery
or open
Right low beam circuit
short circuit to power or
open circuit
Refer to the electrical circuit diagrams and check
right low beam circuit for short circuit to power or
open circuit
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| 25th Jan 2022 1:00 pm |
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Gary_P
Member Since: 03 May 2016
Location: Kent
Posts: 1670
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sceh
Sounds quite possible you have found the cause. Let’s hope you have. I did a little searching and noticed someone with a similar problem found the errors did not re-appear when the lights were turned off. Maybe worth a try to confirm?
Cheers Gary
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Discovery 4 HSE 2016MY
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| 26th Jan 2022 9:39 am |
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sceh
Member Since: 14 Sep 2011
Location: annecy
Posts: 233
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What electrical condition causes a bulb to blow?
It has two terminals - oner to earth and one to live. If earth shorts to live or live to earth it will not cause a bulb to blow so is it just mechanical shock or old age that causes it?
I am hunting for an answer in the wiring diagram but I can't find anything that would cause two bulbs to bulb simultaneously.
Even if there was infinite current because of a shorted Mosfet it would make no difference since the current in the bulb is related to its resistance and not the supply.
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| 27th Jan 2022 10:16 am |
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sceh
Member Since: 14 Sep 2011
Location: annecy
Posts: 233
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So, I found this TSB:
Air Conditioning NHTSA ID: 10056417
TSB ID: LTB-00644NAS-1
Land rover: due to corroded chassis wiring harness on left rear side of chassis-to-body connector, multiple warning lights are displayed in the instrument cluster. model 2005-2009 lr3 (la), 2006-2013 range rover sport (ls), 2010-2013 lr4
I will post a new thread
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| 31st Jan 2022 1:43 pm |
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sceh
Member Since: 14 Sep 2011
Location: annecy
Posts: 233
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Excellent...I start the car today after a couple of days rest, do one yard and all hell breaks loose - every warning light possible and worse, the IIDTool hasn't logged any of the DTCs for some odd reason and this could be due to a CAN bus problem
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| 1st Feb 2022 2:49 pm |
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