highlands
Member Since: 10 Jan 2010
Location: NW Highlands
Posts: 5085
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Screen only showing LR logo after battery flat/replaced |
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I had a flat battery on my D3, now replaced, but the screen is now showing only the LR logo, not map, or settings, reverse camera or anything else.
The car has GVIF interface with the button and remote but nothing moves the screen from the logo.
I have bluetooth IID but not sure if it's something physical needing to be done with the GVIF, which I presume is hidden somewhere behind the trim? Black 05 TDV6 HSE Auto
Grey 05 TDV6 HSE Auto (Gone)
54 TDV6 SE Man (killed by me )
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20th Sep 2022 11:58 am |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10335
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No it won’t be the gvif
Probably something broken on the optical network like the Bluetooth or amp.
Or if you are lucky a battery reset may sort it
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20th Sep 2022 12:45 pm |
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M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8041
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Try a reset with the Iid tool. It can when others can't,
It will when others won't,
It goes where others don't.
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20th Sep 2022 12:53 pm |
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highlands
Member Since: 10 Jan 2010
Location: NW Highlands
Posts: 5085
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Tried resets to no avail.
Will try my spare amp later...hoping! Black 05 TDV6 HSE Auto
Grey 05 TDV6 HSE Auto (Gone)
54 TDV6 SE Man (killed by me )
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20th Sep 2022 8:11 pm |
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Flatlander
Member Since: 20 Jul 2015
Location: Here
Posts: 575
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Disconnect the battery again, try to reconnect after a few minutes without any arcing on the terminal - you only need to disconnect one side.
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20th Sep 2022 8:35 pm |
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Hardware
Member Since: 28 Jun 2016
Location: Hiding under the M60
Posts: 12676
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@Flatlander not sure I follow your logic. To my mind, the "hard reset" procedure is king ... not arcing the +ve/-ve can leave residual charge in the various control units, so may not clear all abnormal temporary settings. .
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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20th Sep 2022 8:55 pm |
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Flatlander
Member Since: 20 Jul 2015
Location: Here
Posts: 575
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I meant put the battery terminal back on in a firm movement, not allowing it to arc.
The 'connect the pos & neg together' doesn't make any sense, once the power supply is removed, the capacitors in the control modules will discharge fairly quickly. I've worked in dealerships of several marques, none of them have mandated such a procedure, including ones that share component manufacturers with JLR. It may have appeared in the workshop instructions at one time but electrically, it has no benefit, provided the power source is disconnected for a few minutes. The more critical part of the process is to let the vehicle systems shut down gracefully, i.e. doors closed, key out, wait 20 mins.
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20th Sep 2022 9:21 pm |
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Hardware
Member Since: 28 Jun 2016
Location: Hiding under the M60
Posts: 12676
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My bad. I assumed by arcing you meant shorting.
Had some kit on a submarine once that retained data months after it should've "forgotten" it. Shorting can't do harm and it eliminates doubt. .
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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20th Sep 2022 9:40 pm |
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highlands
Member Since: 10 Jan 2010
Location: NW Highlands
Posts: 5085
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Flatlander wrote:Disconnect the battery again, try to reconnect after a few minutes without any arcing on the terminal - you only need to disconnect one side.
I knew my electrical engineering degree would come in handy one day.
Black 05 TDV6 HSE Auto
Grey 05 TDV6 HSE Auto (Gone)
54 TDV6 SE Man (killed by me )
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20th Sep 2022 10:35 pm |
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Flatlander
Member Since: 20 Jul 2015
Location: Here
Posts: 575
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Different level of tech., the power filters on vehicles are designed to leak to ground so that every startup is 'fresh', the CCF is broadcast on wakeup to configure everything except powertrain, drivetrain & restraints which are 'hard coded'. The issues happen when there are voltage spikes during the CCF broadcast (e.g. cranking) where some modules may go into a race condition due to an incomplete or corrupted CCF broadcast. in this case, removal of power, forcing a hard reset on restoration of power - which is why it's important to have a fully charged starter battery, can 'cure' many missing function issues.
Last edited by Flatlander on 20th Sep 2022 10:48 pm. Edited 1 time in total
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20th Sep 2022 10:45 pm |
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Flatlander
Member Since: 20 Jul 2015
Location: Here
Posts: 575
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highlands wrote:
I knew my electrical engineering degree would come in handy one day.
Let us know when it happens
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20th Sep 2022 10:47 pm |
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highlands
Member Since: 10 Jan 2010
Location: NW Highlands
Posts: 5085
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I think it's due to coincide with the zombie apocalypse. Black 05 TDV6 HSE Auto
Grey 05 TDV6 HSE Auto (Gone)
54 TDV6 SE Man (killed by me )
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20th Sep 2022 11:08 pm |
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Flatlander
Member Since: 20 Jul 2015
Location: Here
Posts: 575
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21st Sep 2022 6:21 am |
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M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8041
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Try disconnecting both terminals of the battery overnight, don’t disconnect until the parking light goes out.
Does the engine start? It can when others can't,
It will when others won't,
It goes where others don't.
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21st Sep 2022 7:12 am |
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BrumLee
Member Since: 07 Mar 2008
Location: West Midlands
Posts: 1360
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Before you disconnect the battery and leave it overnight, check your emergency door lock (l/h door) operates. Found out the hard way and had to use long screwdrivers and lever to release the bonnet catches Faultmate MSV2 EXTREME
FOXWELL N624 Elite
Hantek 1008c Oscilloscope
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21st Sep 2022 4:54 pm |
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