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leeh1306
Member Since: 14 Feb 2015
Location: Porthcawl
Posts: 109
  
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Radio system is driving me mental at the minute.
it had packed in on my 2010 D4 auto and an auto electrician diagnosed the main cd unit.
changed it and it booted up straight away. happy days
a few weeks back I had a few issues with fuel its been in the garage back out and nothing was working. drove home it comes back to life for a bit then dies again.
checked codes and get U0184-00 lost communication with radio.
couldn't clear the code.
disconnected both ends of battery shorted leads together, put it back together and everything works perfectly no issues.
drove to work perfect
get back in and the buttons on the left of the screen won't work and its stuck on radio 2
just started it up again and now its still playing radio 2 but screens blank.
any suggestions, its a bloody menace?
ive got a wet cell battery varta G3 and its showing 12.5v static and 14.5v running Current........
2010 D4 3.0 TDV6 XS AUTO
Previous.......
2005 D3 2.7 SE AUTO
2008 RR V8 Vogue AUTO
2006 FL 2.0TDI HSE AUTO
2006 FL 2.0 TDI GS MAN
2000 D2 TD5 GS MAN
1997 D1 300TDI GS MAN
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 23rd Oct 2023 4:05 pm |
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leeh1306
Member Since: 14 Feb 2015
Location: Porthcawl
Posts: 109
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just tried disconnecting, shorting and reconnecting again.
screens back on and beeps when I press the screen buttons but doesn't do anything and no sound.
voltage checked again ....
connected ignition off - 12.19v
disconnected - 12.47v
engine running at idle - 14.68v Current........
2010 D4 3.0 TDV6 XS AUTO
Previous.......
2005 D3 2.7 SE AUTO
2008 RR V8 Vogue AUTO
2006 FL 2.0TDI HSE AUTO
2006 FL 2.0 TDI GS MAN
2000 D2 TD5 GS MAN
1997 D1 300TDI GS MAN
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| 23rd Oct 2023 4:22 pm |
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LT
Member Since: 31 Dec 2005
Location: South West
Posts: 23831
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From memory, LR switched to AGM batteries with the D4, maybe even with later D3’s as “wet” batteries were the cause of numerous electrical issues.
In my case, the D3 infotainment system on occasion wasn’t powering off after the ignition was turned off and the vehicle locked and alarmed, thus draining the wet battery and a replacement AGM battery sorted that. Or at least the problem didn’t happen again.
In theory that shouldn’t be the answer to your problem, but maybe!
Good luck with getting it sorted.  2006 D3 HSE (Original & still the best)-GONE
2010 D4 HSE (A bit bling)-GONE
2014 D4 HSE (Almost too bling)-GONE
2015 D4 HSE (A heated what?)-GONE
2016 D4 Landmark (Written Off)-GONE
2016 D4 Landmark (Surely the last!) PD1881 rims-GONE
2017 FFRR SDV8 Autobiography (now semi-retired)
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| 23rd Oct 2023 5:23 pm |
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leeh1306
Member Since: 14 Feb 2015
Location: Porthcawl
Posts: 109
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I picked up a Halfords AGM one today I was hoping not to fit it if I could find something else but ill get it on and be done with it Current........
2010 D4 3.0 TDV6 XS AUTO
Previous.......
2005 D3 2.7 SE AUTO
2008 RR V8 Vogue AUTO
2006 FL 2.0TDI HSE AUTO
2006 FL 2.0 TDI GS MAN
2000 D2 TD5 GS MAN
1997 D1 300TDI GS MAN
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| 23rd Oct 2023 6:40 pm |
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leeh1306
Member Since: 14 Feb 2015
Location: Porthcawl
Posts: 109
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New battery fitted, BMS reset. Still being a spazz. Current........
2010 D4 3.0 TDV6 XS AUTO
Previous.......
2005 D3 2.7 SE AUTO
2008 RR V8 Vogue AUTO
2006 FL 2.0TDI HSE AUTO
2006 FL 2.0 TDI GS MAN
2000 D2 TD5 GS MAN
1997 D1 300TDI GS MAN
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| 23rd Oct 2023 7:17 pm |
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LT
Member Since: 31 Dec 2005
Location: South West
Posts: 23831
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 2006 D3 HSE (Original & still the best)-GONE
2010 D4 HSE (A bit bling)-GONE
2014 D4 HSE (Almost too bling)-GONE
2015 D4 HSE (A heated what?)-GONE
2016 D4 Landmark (Written Off)-GONE
2016 D4 Landmark (Surely the last!) PD1881 rims-GONE
2017 FFRR SDV8 Autobiography (now semi-retired)
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| 23rd Oct 2023 7:41 pm |
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Hardware
Member Since: 28 Jun 2016
Location: Hiding under the M60
Posts: 13023
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hmmm ...
Sorry LT, your battery info is a bit wrong - IIRC D4s with stop-start got AGMs then later D4s started getting AGM regardless (presume merely from point of view of why stock two variants when one of them is the better choice and covers all bases? )
That said, it was possibly worth a punt.
What you need to look for are dodgy earths. The main earth straps are technically an option (battery to body/engine) but unlikely as they'd cause more issues. More likely is an earth point near centre console that grounds the radio head unit. I've just seen a post somewhere (Facebook ?) of something similar that was "fixed" when an ODB scanner was attached but then died shortly after it was disconnected. this would, in theory, provide an alternative earth point IMHO.
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| 23rd Oct 2023 9:14 pm |
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LT
Member Since: 31 Dec 2005
Location: South West
Posts: 23831
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^ You’re right.
I remember now swapping the AGM battery I fitted in the D3 into my 2010 D4.
For sure my 2014 D4 was fitted with an AGM battery, but I thought LR started fitting before then. 2006 D3 HSE (Original & still the best)-GONE
2010 D4 HSE (A bit bling)-GONE
2014 D4 HSE (Almost too bling)-GONE
2015 D4 HSE (A heated what?)-GONE
2016 D4 Landmark (Written Off)-GONE
2016 D4 Landmark (Surely the last!) PD1881 rims-GONE
2017 FFRR SDV8 Autobiography (now semi-retired)
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| 23rd Oct 2023 10:37 pm |
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KPTV8
Member Since: 05 Feb 2012
Location: Itinerant !! (Scotland/Donegal)
Posts: 189
 
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I'm sure this comment will trigger a collective groan 'cos I say it so often - but check deep in your footwells for water - intermittent and inconsistent "sulking" of infotainment components was ONE of the several consquences when I had bad footwell flooding.
If not due to water, then worth remembering that ANY faulty device on a bus can wreak havoc with OTHER devices on the same bus; I've had a faulty reversing aid controller cause rear lights to misbehave and car to drop into "limp home" mode.
Persistence will be your best friend I think  ))
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| 24th Oct 2023 8:58 am |
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leeh1306
Member Since: 14 Feb 2015
Location: Porthcawl
Posts: 109
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I will check thank you, ive not got sunroofs fitted so hopefully not.
got in the car this morning drove the 40 odd miles to work and everything was great, came out a meeting an hour later, horn / alarm going off and stereo on the blink again. Current........
2010 D4 3.0 TDV6 XS AUTO
Previous.......
2005 D3 2.7 SE AUTO
2008 RR V8 Vogue AUTO
2006 FL 2.0TDI HSE AUTO
2006 FL 2.0 TDI GS MAN
2000 D2 TD5 GS MAN
1997 D1 300TDI GS MAN
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| 24th Oct 2023 11:09 am |
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leeh1306
Member Since: 14 Feb 2015
Location: Porthcawl
Posts: 109
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still not got to the bottom of it
still only fault showing is the Ucode for loss of communication.
pulled everything apart today again to check everything, fuses and relays seem fine.
tested the supply to the stereo and its only showing 4.7v. where can I be dropping voltage?? Current........
2010 D4 3.0 TDV6 XS AUTO
Previous.......
2005 D3 2.7 SE AUTO
2008 RR V8 Vogue AUTO
2006 FL 2.0TDI HSE AUTO
2006 FL 2.0 TDI GS MAN
2000 D2 TD5 GS MAN
1997 D1 300TDI GS MAN
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| 8th Nov 2023 3:21 pm |
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leeh1306
Member Since: 14 Feb 2015
Location: Porthcawl
Posts: 109
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made a bit more progress tonight
did the hard reset again, this time something changed.
the screen came back alive! the U code for loss of communication with audio unit has changed from permanent to temporary but would not clear further.
the radio will turn on and the screen will not now turn off its just sat on the LR logo, full 2 button lock of on the doors etc come back 15 mins later and the screen is still on.
ive pulled the terminals and im going back through the hard reset again.
any ideas? Current........
2010 D4 3.0 TDV6 XS AUTO
Previous.......
2005 D3 2.7 SE AUTO
2008 RR V8 Vogue AUTO
2006 FL 2.0TDI HSE AUTO
2006 FL 2.0 TDI GS MAN
2000 D2 TD5 GS MAN
1997 D1 300TDI GS MAN
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| 12th Nov 2023 10:25 pm |
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