jmich
Member Since: 23 Dec 2010
Location: Mons
Posts: 21
  
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| Disco 4 2011 stuck after battery disconnection.. |
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Hello everybody,
I had a non blocking issue with my 2011 D4 last week (p181d fault - clutch actuator ... seen on my IID Tool).
To try to solve it, I removed the battery and unplugged/plug the 2 ECU connectors behind the battery - just wanted to check if the connectors are clean...)
Now, disco is stuck ! (many defaults : EDB, engine, break, suspension, etc...) impossible to start !!
I cleaned the defaults codes via the IID Tolls but they come back immediately.
Battery is new and full; all connectors are ok.
Any idea how to solve this and even start it
Thanks.
JM JM
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 15th Jul 2021 8:30 am |
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Hardware
Member Since: 28 Jun 2016
Location: Hiding under the M60
Posts: 13022
 
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ok ... golden rule is if you touched something and it's now broken, go back and check what you touched.
Might be worth trying a hard-reset too.
open bonnet and let car go to sleep
disconnect +ve and -ve cables from the battery and short the ends of the cables together for 30 seconds.
reconnect battery and see if it's cleared the faults. .
Dean
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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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| 15th Jul 2021 10:04 am |
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jmich
Member Since: 23 Dec 2010
Location: Mons
Posts: 21
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Hello Hardware,
Thanks for your reply but I have already tried these steps.
I also tried a car reset without success...
All faults are coming again when ignition is on.
Very strange as I finally did not touch anything... JM
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| 15th Jul 2021 11:58 am |
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Hardware
Member Since: 28 Jun 2016
Location: Hiding under the M60
Posts: 13022
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ok.
loads of new faults usually means another underlying fault is the cause.
if you're confident battery is healthy, have a look at the earth straps ... battery/body/engine.
There have been a notable number of threads of late where these are at least part of the issue.
Simple check would be use a jump-lead and connect the engine to the battery -ve.
If faults clear - or even if they only change - then you're on the right path. .
Dean
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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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| 15th Jul 2021 12:05 pm |
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jmich
Member Since: 23 Dec 2010
Location: Mons
Posts: 21
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I just tried a cable jump between battery - and engine and body... no change, always a full list of faults and impossible to start 
Nevertheless your diagnose sounds logical!
I will remove the battery again this week end and check all earth straps I can see/check.
Thanks for your help. I will keep you and the community posted. JM
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| 15th Jul 2021 12:43 pm |
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M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8230
 
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Was the car asleep with the park brake light off, doors closed, bonnet switch bridged before you disconnected anything?- if not that is your problem. It can when others can't,
It will when others won't,
It goes where others don't.
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| 15th Jul 2021 2:46 pm |
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jmich
Member Since: 23 Dec 2010
Location: Mons
Posts: 21
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I can not remember but surely not ! (was not aware of this procedure).
By the way, I just finished removing the battery again to check one more time all connections and earth straps... everything is ok and battery is new and fully loaded !
Problem is still there: a lots of faults detected when ignition on and impossible to start...
If the problem comes from the non respect of procedure you mentioned : any idea on how to solve it?
Thanks
JM JM
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| 15th Jul 2021 5:44 pm |
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M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8230
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First thing is to get the fault codes read, without them it’s anybody’s guess. It can when others can't,
It will when others won't,
It goes where others don't.
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| 15th Jul 2021 7:37 pm |
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jmich
Member Since: 23 Dec 2010
Location: Mons
Posts: 21
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Here are the faults I have (read via IID Tool)
U012-00 Lost communication with ABS control module
B1B01-87 Key transponder - Bus signal/message failure
B108B-23 Start button circuit A - general signal failure - signal stays low
B108C-23 Start button circuit B - general signal failure - signal stays low
C1B14-11 Sensor supply 1 - General electrical failure - circuit short to ground
U3002-81 Vehicule identification number - Bus signal/message failure - invalid data received
U0128-00 lost communication with parking brake control module
U0416-68 Invalid data received from vehicle dynamics control module - algorithm based failure
U0415-68 Invalid data received from ABS control module
U0122-87 lost communication with vehicle dynamics control module - Bus signal/message failure - missing a message
U0122-00 lost communication with vehicle dynamic control module
Dashboard is off course showing less details: default urgent brake, default stability, default EDB, default engine,... JM
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| 15th Jul 2021 8:51 pm |
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M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8230
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Check the ecu connectors for bent or damaged pins, check rear brake light bulbs, change brake light switch- it is more than a switch and can cause numerous problems but I think the problem may have been caused by disconnecting the battery without the car being in sleep mode. It can when others can't,
It will when others won't,
It goes where others don't.
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| 16th Jul 2021 9:42 pm |
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nigethecat
Member Since: 11 Sep 2016
Location: Marnoch
Posts: 4244
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Do you have more than one key for the car? If so have you tried both/all keys?
The transponder code makes me think that the chip in the key is not talking to the car... just a thought and it eliminates another possible cause  I want to see the sweets before I get into your windowless van... I'm not stupid!
Corris Grey D4 Commercial SE 2016
Zermatt Sliver 2007 D3 SE manual (gone)
Indus Silver D4 HSE 2015 (gone)
Bonatti Grey D3 HSE 2006 (gone)
White D3 S (LHD) 2007 (gone)
Firenze Red D4 HSE 2014 (gone)
Black RRS 3.6TDV8 2008 (gone)
Rusty Green Defender 110 1997 (gone)
Black FL2 HSE 2013 (gone)
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| 16th Jul 2021 10:21 pm |
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jmich
Member Since: 23 Dec 2010
Location: Mons
Posts: 21
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I have checked connectors, rear brake bulbs: everything is clean and like new ! I also spray some electrical cleaner et let it dry before reconnect. Brake switch seems to be ok but I don't have a spare part to check...
I even tried my 2nd key... No success
Then I contacted my LR dealer: they can investigate next week but I will need a tow truck.  JM
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| 17th Jul 2021 11:07 am |
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Hardware
Member Since: 28 Jun 2016
Location: Hiding under the M60
Posts: 13022
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have you got "stop start" ? 2nd battery condition ?
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| 17th Jul 2021 11:13 am |
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jmich
Member Since: 23 Dec 2010
Location: Mons
Posts: 21
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No stop-start (2011 model). no 2nd battery. JM
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| 17th Jul 2021 11:15 am |
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M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8230
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Brake light switches are only £10-£15 it's got yo be worth a shot, I carry a spare after having one fail with all sort of fault messages It can when others can't,
It will when others won't,
It goes where others don't.
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| 17th Jul 2021 11:52 am |
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