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Complete ECU swap out
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woffmister
 


Member Since: 18 Dec 2012
Location: Worcestershire
Posts: 25

United Kingdom 2005 Discovery 3 TDV6 Commercial Manual Buckingham BlueDiscovery 3
Complete ECU swap out

So,, I've taken the plunge,

The Silver HSE D3 05 is having open brain surgery.

I bought a complete ECU kit from Ebay and I'm going to set a plan over the WE to fit it.

I've lost the central locking RF signal to the FET. The signal is coming down but there is no action from FET so I'm going to replace the whole lot. I think it probably has something to do with the swimming pool in the passenger footwell and the leak was directly above the CJB.

Has anyone done this before. I'd say I am moderately confident this will work.

I've got my IID tool ready not BT unfortunately but its a start.

Any Pointers Very Happy
 D3 2005 S Manual
D3 2005 HSE Auto
IID Tool (Not BT yet) 
 
Post #190212916th Jan 2018 12:02 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10336

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

do you mean you are going to fit a 2nd hand replacement fusebox/CJB behind the glovebox ?

if yes, then I think it has an imboliser in it, so would investigate how you will program it before starting
  
Post #190213716th Jan 2018 12:20 pm
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Flack
 


Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6224

England 2007 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

You would need the complete set to make it work, it has been done before.

Flack Thumbs Up
  
Post #190214316th Jan 2018 12:29 pm
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woffmister
 


Member Since: 18 Dec 2012
Location: Worcestershire
Posts: 25

United Kingdom 2005 Discovery 3 TDV6 Commercial Manual Buckingham BlueDiscovery 3

Ive got all the bits I hope.
 D3 2005 S Manual
D3 2005 HSE Auto
IID Tool (Not BT yet) 
 
Post #190214716th Jan 2018 12:35 pm
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anglefire
 


Member Since: 09 Mar 2010
Location: In the Club House
Posts: 4180

England 

I had an issue with my CJB (due to muppetry on my part in the main, but was playing up anyway) and had to be replaced - I didn't do it myself as although I probably could have done most of it, the cost to supply and fit was not much more than the cost for me to supply only - and the CJB is a bitch to replace due to where it is.

Dunno what you paid for the complete kit, but I hope it was well south of £500 Whistle
 Mark.
2006, D3 SE Auto - gone but not forgotten.
2014 BMW 530d M Sport Tourer.
1977 Triumph Spitfire 1500

_________________________________________________
Disco Picture Website Here 
 
Post #190217016th Jan 2018 1:07 pm
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woffmister
 


Member Since: 18 Dec 2012
Location: Worcestershire
Posts: 25

United Kingdom 2005 Discovery 3 TDV6 Commercial Manual Buckingham BlueDiscovery 3

Where are my CCF saved in what controller? If I replace the CJB , ECM and instrument cluster will I need to make aload of CCF changes to suit this D3??
 D3 2005 S Manual
D3 2005 HSE Auto
IID Tool (Not BT yet) 
 
Post #190406920th Jan 2018 9:13 pm
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woffmister
 


Member Since: 18 Dec 2012
Location: Worcestershire
Posts: 25

United Kingdom 2005 Discovery 3 TDV6 Commercial Manual Buckingham BlueDiscovery 3

So now that I’ve installed the ecu’s I’ve got another problem. The car won’t start.
Well it did then when I thought great I’ll check the car works on the remote it didn’t start back up again.

So now it won’t start and won’t lock on the fob either.

Censored

I’ll need to get another license to check , but the only fault I can get to come up is one from the transfer case controller saying VIN invalid.

Will the transfer case prevent starting???

The rabbit hole is getting deeper.
 D3 2005 S Manual
D3 2005 HSE Auto
IID Tool (Not BT yet) 
 
Post #190454921st Jan 2018 7:58 pm
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Flack
 


Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6224

England 2007 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

3 vins on the ecu's have to match so if you have the 4x4 saying its a vin miss match, then it sounds like your other vin check ecu's are complaining .

I think with you locking the car its seen the vin differences and cjb has no it does not match.


Flack Thumbs Up
  
Post #190464621st Jan 2018 10:22 pm
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woffmister
 


Member Since: 18 Dec 2012
Location: Worcestershire
Posts: 25

United Kingdom 2005 Discovery 3 TDV6 Commercial Manual Buckingham BlueDiscovery 3

Well I have to admit this is not an easy job.

As the donor D3 was a standard motor and not HSE the Cruise control buttons are not activated so makes it difficult to navigate IID tool. Then the interface it rather rubbish across the laptop keeps hanging.

Along with the fact that the VIN is not the same as the IID so I need to add another VIN to my IID Rolling Eyes

Having replaced all the controllers I can still not get the FOBs to work from the donor car which leads me to think that this issue is something else.

Maybe I have missed something.

1. Splice checked out OK.
2. Wiring OK to the
3. ECU's swapped and still the FOBS are not functioning.
4. Tried RF receiver in other car works fine.
4. I have read the WSM and it's not giving anything else for me to look at.

Anyone been down this hole and back yet? Maybe I need to look at the Wiring again but I dont think that there is any signal that is needed to work the remote fob other than the signal from the receiver.
 D3 2005 S Manual
D3 2005 HSE Auto
IID Tool (Not BT yet) 
 
Post #190496922nd Jan 2018 5:47 pm
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