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Lr4 electrical issues, hvac, infotainment speedometer, radio
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jamesSE4x4R
 


Member Since: 09 Mar 2016
Location: kent seaside
Posts: 176

United Kingdom 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Sumatra BlackDiscovery 4

I’ve had my instrument cluster repaired and have got infotainment and AC back but not have HDC, ABS and traction errors plus it’s lowered the suspension “for safety” .. just put a new battery in but it’s still not playing ball… someone must have an idea?
 www.southeast4x4response.org.uk Responder of 9 years service SE140
Ex defender 50th owner, GB165
2010 MY XS -sold
2014 MY HSE Lux curent
2017 MY Disco Sport (wife's)
" if it fly's, floats, is fast or fornicates you can't afford it my boy" RIP Gramps 2009 
 
Post #230144625th Jul 2022 6:49 pm
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Disco_driver
 


Member Since: 22 Oct 2017
Location: Derbyshire
Posts: 98

United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Waitomo GreyDiscovery 4

Mines going into the local specialists next week, really losing faith in the thing at the moment.

I’ll keep here updated with any findings.

Joe
  
Post #230145225th Jul 2022 7:10 pm
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ltrains
 


Member Since: 15 Feb 2017
Location: new york
Posts: 8

United States 2010 LR4 5.0 V8 HSE Lux Auto Zambezi SilverLR4

So far no progress yet, try the fiber loop at the at bluetooth module.
Try the bad ground test with a jumper cable from battery negative to engine block.
check all splices, grounds by drivers and passenger side. is there way to check the high and medium communication wires? So many modules, don't know which one is the culprit
  
Post #230145825th Jul 2022 7:42 pm
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jamesSE4x4R
 


Member Since: 09 Mar 2016
Location: kent seaside
Posts: 176

United Kingdom 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Sumatra BlackDiscovery 4

ok im £1800 down on parts & diagnostics now BUT we think we've found the issue, the ABS modulator has cooked itself and spiked the instrument cluster. That in turn knocked out all of the centre cluster including infotainment and climate and caused almost every warning light possible.

I had the instrument cluster repaired locally at a cost of £165 and had to purchase an ABS modulator pt no LR061891

its all back together and has to be throughly road tested before I can start thanking the LR gods but it looks like that was the route cause..
 www.southeast4x4response.org.uk Responder of 9 years service SE140
Ex defender 50th owner, GB165
2010 MY XS -sold
2014 MY HSE Lux curent
2017 MY Disco Sport (wife's)
" if it fly's, floats, is fast or fornicates you can't afford it my boy" RIP Gramps 2009 


Last edited by jamesSE4x4R on 4th Aug 2022 3:15 pm. Edited 1 time in total 
Post #23028764th Aug 2022 2:58 pm
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Disco_driver
 


Member Since: 22 Oct 2017
Location: Derbyshire
Posts: 98

United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Waitomo GreyDiscovery 4

removed
 

Last edited by Disco_driver on 12th Aug 2022 11:49 am. Edited 1 time in total 
Post #23028774th Aug 2022 3:00 pm
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jamesSE4x4R
 


Member Since: 09 Mar 2016
Location: kent seaside
Posts: 176

United Kingdom 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Sumatra BlackDiscovery 4

no the first sign of trouble was TPS warnings followed by the fan cutting to.. now for full disclosure I did have nearly a ton and a half of bottled water in the car ( doing emergency water drop off on the isle of sheppey ) two days prior but it didn't give me any warning for ABS or anything else for that matter until it just shat itself plodding down the motorway a few days later
 www.southeast4x4response.org.uk Responder of 9 years service SE140
Ex defender 50th owner, GB165
2010 MY XS -sold
2014 MY HSE Lux curent
2017 MY Disco Sport (wife's)
" if it fly's, floats, is fast or fornicates you can't afford it my boy" RIP Gramps 2009 
 
Post #23028784th Aug 2022 3:18 pm
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