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DISCO3.CO.UK > Faults & Fixes (D4)

Interior lighting
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 14138

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Thks

Suppose it would be handy to find out what module the power comes out of to supply that circuit

Not 100% I’m afraid ref the ambient lighting , what backlighting does work please , assume all the door switches etc are ok , certainly worth checking the CCF settings

Alas maybe the BCM is faulty and the previous owner knew and left it

Think have PIN numbers from the modules would be handy to have , will see if I can find them

Think the sport has the same modules connectors up to 2012 , that workshop manual shows electrical in more detail

Am still looking though all the bits
   
Post #20973783rd Nov 2019 6:46 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 14138

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Meant to ask , have u got a diagnostic reader please, any DTC as I would assume that cause an error ??
   
Post #20973803rd Nov 2019 7:01 pm
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DiscoStevey
 


Member Since: 07 Jan 2017
Location: Cheshire
Posts: 61

United Kingdom 2010 Discovery 4 3.0 TDV6 XS Auto Izmir BlueDiscovery 4

Just looked on my 'secret' config screen on the dash. I have 1 zone ambient lighting, and 1 colour. Given that this ambient lighting is fed from the same wire as all the other business it's got to be worth a shot with the CCF?
 Jaguar Land Rover: "Building great cars, badly."  
Post #20973813rd Nov 2019 7:01 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 14138

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Funny enough , just looked on the gap iid menu and found the ambient setting


   
Post #20973843rd Nov 2019 7:06 pm
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DiscoStevey
 


Member Since: 07 Jan 2017
Location: Cheshire
Posts: 61

United Kingdom 2010 Discovery 4 3.0 TDV6 XS Auto Izmir BlueDiscovery 4

I've got no code reader. Everything else works when you turn the sidelights or headlights on, except the bits previously mentioned. Window switches, centre console etc. I'd just be surprised if the BCM had failed because it seems like such a weird fault.

I appreciate the effort anyway, nice to have another brain involved 😂
 Jaguar Land Rover: "Building great cars, badly."  
Post #20973893rd Nov 2019 7:12 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 14138

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Cheers , don’t think having a code reader plugged would hurt that’s for sure

Also wonder if just that FET transiter has failed , allowing the rest of the BCM to function normally, don’t know how hard it would be to get that tested if diagnostics didn’t show anything

Don’t know how much help I’ve been, Laughing , please keep us updated as personally to save ur sanity I would have it plugged in

Only reason I say that is when I bought my D3 it came with an airbag fault , wouldn’t have stood a chance without diagnostics so bought my own IId , pay for themselves very quickly Thumbs Up
   
Post #20974003rd Nov 2019 7:34 pm
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M3bobby
 


Member Since: 21 May 2018
Location: Sleaford, LINCS.
Posts: 857

United Kingdom 

The FET should help protect a circuit but they can blow, especially if someone fitted crap LEDs back to front!!

It does sound like a BCM fault, if you’re ambient light is showing a Zone 1 them that is correct.
 012MY RRS 5.0 Supercharged Autobiography (Current)
Mods:
TPMS (Complete but got an issue)
Genuine LR DRLs (Complete)
Remote Boot close from key fob (Complete)
2016 Discovery 4 Mirrors AKA RRS2 (Complete)
2014 L405 Surround Camera retro fit (Now 2016 L319)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE (Complete)
2014 LR4 Homelink (Complete)
2016 FFRR Electrochromatic Wing Mirror Glass (Complete) 
 
Post #20975634th Nov 2019 6:20 pm
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M3bobby
 


Member Since: 21 May 2018
Location: Sleaford, LINCS.
Posts: 857

United Kingdom 

Just a thought, have you done all your con checks with the connector at the BCM connected or disconnected? Did you check for shorts to earth or shorts to live? If there’s a short I think the BCM or FET can effectively turn power off to that circuit to prevent major issues and it may need the DTC clearing before it will allow power back to the circuit (and obviously a repair). I’m in this boat at the moment with my left mirror heater. I have a short to fix and if I clear the code, all is fine until the heater is triggered and it shuts off and registers a DTC.
 012MY RRS 5.0 Supercharged Autobiography (Current)
Mods:
TPMS (Complete but got an issue)
Genuine LR DRLs (Complete)
Remote Boot close from key fob (Complete)
2016 Discovery 4 Mirrors AKA RRS2 (Complete)
2014 L405 Surround Camera retro fit (Now 2016 L319)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE (Complete)
2014 LR4 Homelink (Complete)
2016 FFRR Electrochromatic Wing Mirror Glass (Complete) 
 
Post #20975654th Nov 2019 6:27 pm
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DiscoStevey
 


Member Since: 07 Jan 2017
Location: Cheshire
Posts: 61

United Kingdom 2010 Discovery 4 3.0 TDV6 XS Auto Izmir BlueDiscovery 4

Okay so I've just been scrutinising the wiring diagram and found a section for interior lighting, specifically AMBIENT LIGHTING. The ambient lighting in the door handles, bins etc is all run off the same feed I'm chasing. The same red/brown wire in the same connector. What's the betting the Ambient lighting is turned off?




*NB it can't possibly be that simple, can it?
 Jaguar Land Rover: "Building great cars, badly."  
Post #209885710th Nov 2019 7:32 pm
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DiscoStevey
 


Member Since: 07 Jan 2017
Location: Cheshire
Posts: 61

United Kingdom 2010 Discovery 4 3.0 TDV6 XS Auto Izmir BlueDiscovery 4

Also, resistance to ground from the harness is 686 ohms, so no sign of a dead short. Local Indy has offered to plug it in and if turning the ambient lighting on doesn't fix it he won't charge me 😁
 Jaguar Land Rover: "Building great cars, badly."  
Post #209905911th Nov 2019 6:56 pm
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DiscoStevey
 


Member Since: 07 Jan 2017
Location: Cheshire
Posts: 61

United Kingdom 2010 Discovery 4 3.0 TDV6 XS Auto Izmir BlueDiscovery 4

Bad News. Autologic suggests there is a fault to ground.

Where do I start with that? Nothing obvious - no damaged wiring visible under the gear lever tunnel bit. Nothing behind the glove box or round the doors.

On the plus side he did enable the timed climate while he was plugged in 🤣
 Jaguar Land Rover: "Building great cars, badly."  
Post #210092120th Nov 2019 3:36 pm
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M3bobby
 


Member Since: 21 May 2018
Location: Sleaford, LINCS.
Posts: 857

United Kingdom 

Not to hard if you have a fluke.

Set the fluke to diode test range (I use this as I get a nice audible beep with continuity) I’d then disconnect the connector at the CJB and put my pos probe onto the appropriate wire and the other to ground. If you get a beep you have a short to earth. Like I mentioned above, a short would cause the FET to stop power on that circuit so if the DTC suggests a short to earth, I’m confident that’s what you have. Did you get the exact code as I’ll see what the WS manual suggests.
 012MY RRS 5.0 Supercharged Autobiography (Current)
Mods:
TPMS (Complete but got an issue)
Genuine LR DRLs (Complete)
Remote Boot close from key fob (Complete)
2016 Discovery 4 Mirrors AKA RRS2 (Complete)
2014 L405 Surround Camera retro fit (Now 2016 L319)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE (Complete)
2014 LR4 Homelink (Complete)
2016 FFRR Electrochromatic Wing Mirror Glass (Complete) 
 
Post #210094520th Nov 2019 5:31 pm
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DiscoStevey
 


Member Since: 07 Jan 2017
Location: Cheshire
Posts: 61

United Kingdom 2010 Discovery 4 3.0 TDV6 XS Auto Izmir BlueDiscovery 4

 Jaguar Land Rover: "Building great cars, badly."  
Post #210095320th Nov 2019 5:48 pm
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M3bobby
 


Member Since: 21 May 2018
Location: Sleaford, LINCS.
Posts: 857

United Kingdom 

U2010-11

Switch illumination circuit short to ground.

Refer to elec diagrams and check the switch illumination circuit.

U1000-00

Solid state driver protection active - driver disabled - no sub type information.

Note. When this DTC is present the relevant output is disabled.

U3000-49

Control module - internal electronic failure.

Renew Central Junction Box. Refer to Warranty policy and procedures manual if a module/component is suspect.


So fixing the short and clearing the DTC should re-enable the illumination. Now to find it!!
 012MY RRS 5.0 Supercharged Autobiography (Current)
Mods:
TPMS (Complete but got an issue)
Genuine LR DRLs (Complete)
Remote Boot close from key fob (Complete)
2016 Discovery 4 Mirrors AKA RRS2 (Complete)
2014 L405 Surround Camera retro fit (Now 2016 L319)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE (Complete)
2014 LR4 Homelink (Complete)
2016 FFRR Electrochromatic Wing Mirror Glass (Complete) 
 
Post #210095720th Nov 2019 6:05 pm
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DiscoStevey
 


Member Since: 07 Jan 2017
Location: Cheshire
Posts: 61

United Kingdom 2010 Discovery 4 3.0 TDV6 XS Auto Izmir BlueDiscovery 4

That's the bit I'm not looking forward to 😕

Had a look under the centre console round the gear lever, can see the wire to the various bits, no sign of an obvious short. Could it potentially be one of the components that's supposed to illuminate?

Cheers for the help. The Internet is great 🤣
 Jaguar Land Rover: "Building great cars, badly."  
Post #210095920th Nov 2019 6:09 pm
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