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Hazards constantly flashing
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A.J.M
 


Member Since: 31 Oct 2009
Location: Carluke
Posts: 2855

Scotland 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Yulong WhiteDiscovery 4

kidney wiper wrote:
Is that not the trafer box ECU behind that cover ?


Could be, all i know is, it got removed. Dried up and all pins cleaned and refitted.
Problem has since stopped so unless there's witchcraft* happening, i'm pointing the finger of blame at it. Laughing

*This is a possibility with LR product's that shouldn't be ignored. Rolling Eyes Laughing
 In loving memory of FA54WSK.

Rest well old friend, your work is done. 
 
Post #10504936th Feb 2013 9:44 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20853

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

kidney wiper wrote:
Is that not the trafer box ECU behind that cover ?


Yes, it is. And behind that is the engine ECU Thumbs Up
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #10505787th Feb 2013 6:53 am
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orkneydave
 


Member Since: 27 Aug 2012
Location: Orkney Islands
Posts: 597

United Kingdom 2005 Discovery 3 TDV6 S Manual Tonga GreenDiscovery 3

Having similar sounding problems with my 05 plate TDV6 S. Got up yesterday morning to find that it was sitting on the drive with all the hazards flashing, doors constantly trying to unlock themselves, interior lights on and heater blower switching on and off.

Started the car and all faults went away but returned when I switched it off again. Started it again and left it running for half an hour before driving it to work (30 minute drive) and it seems to be ok now.

I wonder if it has done this before as a few weeks ago the battery went completely flat (less than 1 volt!). As the battery was original and on its way out I presumed that it had simply expired and got a new one. I have also blown 2 headlight bulbs in the last month (N/S and O/S). Will check behind the battery this weekend (when there is enough light!).
 Dave Neil
2018 Outlander PHEV
2005 Discovery 3 TDV6 S (went up in flames)
1972 Series 3 109 200tdi (@alfredthe109)
1972 MGB GT (in bits) 
 
Post #11971894th Dec 2013 9:36 am
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A.J.M
 


Member Since: 31 Oct 2009
Location: Carluke
Posts: 2855

Scotland 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Yulong WhiteDiscovery 4

Checked that ecu behind the battery?
 In loving memory of FA54WSK.

Rest well old friend, your work is done. 
 
Post #11973714th Dec 2013 4:06 pm
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orkneydave
 


Member Since: 27 Aug 2012
Location: Orkney Islands
Posts: 597

United Kingdom 2005 Discovery 3 TDV6 S Manual Tonga GreenDiscovery 3

Not yet! Flew up to Shetland yesterday morning just after it happened an only fly back tomorrow. Will have to wait till the weekend when there is enough light.
 Dave Neil
2018 Outlander PHEV
2005 Discovery 3 TDV6 S (went up in flames)
1972 Series 3 109 200tdi (@alfredthe109)
1972 MGB GT (in bits) 
 
Post #11975324th Dec 2013 8:53 pm
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Numpty
 


Member Since: 18 Aug 2012
Location: Bolton
Posts: 673

England 

Years ago I had a Mondeo that had a "shelf" above the footwell at the base of the windscreen through which there was a hole for the heater to draw air via the pollen filter plastic housing. As Ford used a crappy foam seal which once wet rotted allowing water that had run off the windscreen past the seal making for a nice swimming pool in the passenger footwell.

Looking at the picture of the connector/ECU behind the battery it looks like a similar situation.

Do we know the route of the water i.e. off the corner of the wing or the base of the windscreen and how does that influence where to put sealant?
  
Post #11978295th Dec 2013 12:09 pm
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orkneydave
 


Member Since: 27 Aug 2012
Location: Orkney Islands
Posts: 597

United Kingdom 2005 Discovery 3 TDV6 S Manual Tonga GreenDiscovery 3

Not had a chance to check for water at the ECU yet for being stuck in Shetland for a couple of days longer than planned due to the weather.

However, the fault did not appear the whole time I was away. It has however come back today. Not a problem when the ignition is on, but starts when the ignition is off (keys can be in or out). Fault goes away when brake pedal is pressed but comes back when lifted. And sometimes a park brake fault is displayed on the dash so think it must be something to do with the brakes. Brake lights are all working and the park brake module was replaced under warranty a couple of years ago, although I had to get Strathearn to release the cable and wind it back in last February. The saga continues!
 Dave Neil
2018 Outlander PHEV
2005 Discovery 3 TDV6 S (went up in flames)
1972 Series 3 109 200tdi (@alfredthe109)
1972 MGB GT (in bits) 
 
Post #11993858th Dec 2013 1:36 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20853

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Low voltage on the red wire, at the brake pedal switch Thumbs Up

Very common on manual D3's Thumbs Up
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #11996168th Dec 2013 10:01 pm
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Bushwanderer
 


Member Since: 27 Nov 2007
Location: Northern Rivers, NSW, Australia
Posts: 2050

Australia 2005 Discovery 3 TDV6 S Manual Buckingham BlueDiscovery 3

Hi DM,
And the fix is?

Best Wishes,
Peter
 The Bearded Dragon  
Post #120014010th Dec 2013 4:37 am
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20853

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

The red wire goes into a splice joint, which corrodes.

Splice into said wire, before it goes as far as the splice joint Thumbs Up
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #120015010th Dec 2013 6:42 am
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Bushwanderer
 


Member Since: 27 Nov 2007
Location: Northern Rivers, NSW, Australia
Posts: 2050

Australia 2005 Discovery 3 TDV6 S Manual Buckingham BlueDiscovery 3

Hi DM,
Great! Thumbs Up

Best Wishes,
Peter
 The Bearded Dragon  
Post #120063310th Dec 2013 11:00 pm
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hutchy7
 


Member Since: 13 May 2017
Location: Dundee
Posts: 10

Scotland 

orkneydave wrote:
Having similar sounding problems with my 05 plate TDV6 S. Got up yesterday morning to find that it was sitting on the drive with all the hazards flashing, doors constantly trying to unlock themselves, interior lights on and heater blower switching on and off.

Started the car and all faults went away but returned when I switched it off again. Started it again and left it running for half an hour before driving it to work (30 minute drive) and it seems to be ok now.

I wonder if it has done this before as a few weeks ago the battery went completely flat (less than 1 volt!). As the battery was original and on its way out I presumed that it had simply expired and got a new one. I have also blown 2 headlight bulbs in the last month (N/S and O/S). Will check behind the battery this weekend (when there is enough light!).


This is exactly my problem! Orkneydave, did you ever solve this? Thanks in advance
  
Post #181464413th May 2017 4:33 pm
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djw113uk
 


Member Since: 11 Jun 2018
Location: Warwickshire
Posts: 29

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Unknown ColourDiscovery 3

Disco_Mikey wrote:
The red wire goes into a splice joint, which corrodes.

Splice into said wire, before it goes as far as the splice joint Thumbs Up


Sorry to awaken such an old thread, but can you guide me as to where the red splice is please?
Mine is 2005 auto, but seems to have this hazard and locking fault that can be changed by pressing the brake pedal!
  
Post #235347219th Nov 2023 12:43 am
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ratrunner
 


Member Since: 20 Nov 2015
Location: cotswolds
Posts: 195

United Kingdom 2015 Discovery 4 3.0 SDV6 SE Auto Santorini BlackDiscovery 4

A.J.M wrote:
Update to lay this to rest.
The ECU had loads of water on it, the middle blue connector had loads of corroded pins so they were all cleaned up and the ECU dried out.
Thankfully that has worked so we had put some sealant on the connectors to stop water getting at them again.

Today we checked mine to see if I was going to have the issue. When we removed the cover my ECU was like new, no water Ingres signs anywhere. Sealant has been applied so it stays that way.

The ECU is behind a cover that's visible when you remove the battery. As pictured.
Click image to enlarge


So should anyone bother to use the search function in the future. This thread will show the likely issue and how to fix it. Thumbs Up

Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated Mr. Green
Is that the fuse box under the main battery ?  
Post #235351719th Nov 2023 4:32 pm
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A.J.M
 


Member Since: 31 Oct 2009
Location: Carluke
Posts: 2855

Scotland 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Yulong WhiteDiscovery 4

Fuse box beside the main battery.

The ecu is behind the battery at the bulkhead.
  
Post #235364421st Nov 2023 11:35 am
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