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Still 3 months and no Start - TDV6 D3 2007
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rogerc
 


Member Since: 16 Dec 2014
Location: São Paulo
Posts: 57

Brazil 2007 Discovery 3 TDV6 S Auto Barolo BlackDiscovery 3
Still 3 months and no Start - TDV6 D3 2007

Guys, help me for gosh sake!!!
Still almost 3 months and we cannot start my D3 TDV6, 2007... All started with a flat battery after a full working day and car parked. Certainly, I drove all the way in the morning to the company with no problem.
We tried to jumpstart with another running car but no success... Thought that the cables we had could not drive enough courrent. The car started and then died after 2 seconds... Called tripple A, and the guy, with other battery and thick cables could not start the car also. One thing, the guy inverted the battery poles on the first connection... jus some sparks and he took off... 1 second deal... Car winched to my usual mechanic, he works only with Land Rovers. He figured out there was the creash error in the car. B1A55-14 CRASH RECORD OUTPUT CIRCUIT (Circuit short to ground or open). This is what Autologic was showing. Nothing could take off this error and we imagined the car was in safe or crash mode, that´s why it dont start. We tried to update SW, reprogramm, calibrate, but the airbag module just dont let do anything. Checked all the wiring, connections and joints, as this crash signal goes to other modules and could be shortened somewhere.
**New airbag module ordered.**
Installed, reprogramed, calibrated but the B1A55-14 still there and the car wont start. Second suspect, Engine module. My mechanic found out that the high pressure pump is not pumping. Everything was checked and nothing wrong was found, that´s why we suspected from engine module, as it is the one who supplies the pump. Ordered an used engine module control from a specialis that says he can programm anything. He can take out the datas from your module and place on another one. It happens that he changed 3 different modules, with different programations and the car still starting for 1 or 2 seconds. Autologic is not able to reprogram engine module. There is a security error.
Bottom line. Shal I buy a new engine module? It is too much expensive... do you guy has any idea on what could it be? Is there a possibility of my original engine module has it´s software corrupted and we are bringing the SW error for the other ones? We have Autolgic, IIDTool and Nanocom Evolution tools available... Remember, the crash error still there... Other thing, the LED alarm still blinking when car is running for the 2 seconds.
  
Post #18863333rd Dec 2017 9:54 pm
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F355GTS
 


Member Since: 10 Nov 2008
Location: North Hampshire
Posts: 849

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Buckingham BlueDiscovery 4

Is there not an inertia switch on these to cut off the fuel in event of accident? Certainly all the Petrol cars I have, have them, just a simple push switch to reset.

can't see a reference to a switch but this thread maybe worth a read

https://www.disco3.co.uk/forum/starting-pr...tia+switch
 Mark  
Post #18863784th Dec 2017 7:38 am
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20713

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

No inertia switch, just a cycle of the ignition to reset Thumbs Up
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #18864394th Dec 2017 11:06 am
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TigerRecovery
 


Member Since: 31 May 2017
Location: Long Stratton, Norwich, Norfolk
Posts: 901

Wales 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Waitomo GreyDiscovery 4

You need to reset the car mode from Crash to Normal via a diagnostic tool, but this can only be done if all the modules have been cleared of faults.
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Post #18864534th Dec 2017 11:59 am
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rogerc
 


Member Since: 16 Dec 2014
Location: São Paulo
Posts: 57

Brazil 2007 Discovery 3 TDV6 S Auto Barolo BlackDiscovery 3

Hello Guys, thanks for the inputs... Tried all above and nothing...
  
Post #18864684th Dec 2017 1:00 pm
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Globetrotter448
 


Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1772

Australia 2007 Discovery 3 4.0 V6 Petrol SE Auto Java BlackDiscovery 3

Need to get it clear in my mind. Not in any particular order.

1. Its a diesel
2. you drove it and battery died - no problems prior to this
3. it cranks and runs for a couple of seconds or just cranks
4. It has fuel under pressure going to all injectors (disconnect an injector pipe to see)
5. No noises when it runs for a few seconds
6. Compression is okay
7. When switched on, vehicle goes through its system check ok
8. You have got diesel in the tank
9. the fuel pumps runs (I think there are two on diesels)

The simple view: Embarassed
Diesels engines fire via compression and fuel being injected at the right time. These engines have sensors to detect when to squirt fuel (have you checked these). The fuel is pressurised by the fuel pump sometimes via a filter.

Now if all this is correct it should run. Diesels stop when you cut the fuel supply.
  
Post #18874986th Dec 2017 11:26 pm
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Globetrotter448
 


Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1772

Australia 2007 Discovery 3 4.0 V6 Petrol SE Auto Java BlackDiscovery 3

Thinking some more but in relation to the error code.

I think this error code (from RCM) will remove power to the main power relay which will stop the engine working (you should have some error indication on the dash)
This error code sits in the controls on the fuse panel behind the glove box and needs to be reset. Exactly where I am not sure or how to reset it (maybe a friendly LR dealer will explain). May be a faulty RCM or even a faulty ECU.

Good luck, I will ponder some more
  
Post #18875056th Dec 2017 11:54 pm
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Globetrotter448
 


Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1772

Australia 2007 Discovery 3 4.0 V6 Petrol SE Auto Java BlackDiscovery 3

Updating my thinking.
There is a relay in the engine compartment (R6) which controls the engine systems. You could pull this relay and jumper the two large slots (after taking relay out) with a thick wire and then see if engine will run.
  
Post #18875237th Dec 2017 7:52 am
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8044

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

Is it possible to run the low pressure fuel pump with a seperate feed?- just to test start it.
An air bag module usually only goes into crash mode when an airbag has been fired, although the Iid tool should detect this, I would check all air bag connections particularly seat belts and seat belt tensioners, it is almost impossible to tell a seat belt has been fired without test equipment. Check the seat belts retract fully and operate easily.

P.S. if they do not retract easily and fully its a racing certainty they have been deployed Thumbs Up
 It can when others can't,
It will when others won't,
It goes where others don't. 


Last edited by M3DPO on 7th Dec 2017 10:03 pm. Edited 2 times in total 
Post #18875297th Dec 2017 8:21 am
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Globetrotter448
 


Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1772

Australia 2007 Discovery 3 4.0 V6 Petrol SE Auto Java BlackDiscovery 3

Not totally sure, but the fuel pump relay on my diagrams is R8 and the fuse is F1 (25A). So you could pull R8 and jumper the two large slots and pump should run.

The crash error can be a shorted wire

Find the RCM module and pull the plugs and check which of the pins go to grd as this is what triggers the error.
Sorry cannot give much help
  
Post #18875337th Dec 2017 8:47 am
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al cope
 


Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10289

England 

where did you connect the jump leads to as I didnt think you were supposed to connect straight to the battery. I thought it was +ve to the battery but -ve to chassis ground, and NOT to the battery -ve. Also, given the guy connected the leads the wrong way round, you could have shorted/blown numerous items.

Al
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Post #18875377th Dec 2017 8:57 am
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Globetrotter448
 


Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1772

Australia 2007 Discovery 3 4.0 V6 Petrol SE Auto Java BlackDiscovery 3

No, you do not jumper from battery or connect anything to ground.

Remove Relay, where you take out the relay you will see two slots that are larger then the other two slots.
Push a piece of thick wire into one of the large slots and then put the other end into the other large slot and you should here the pump running. then try to start engine.
  
Post #18875547th Dec 2017 9:46 am
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rogerc
 


Member Since: 16 Dec 2014
Location: São Paulo
Posts: 57

Brazil 2007 Discovery 3 TDV6 S Auto Barolo BlackDiscovery 3

Hello all

I really appreciate all support. I am forwarding all messages to my mechanic an will let you know about the progresses.
  
Post #18875797th Dec 2017 11:26 am
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rogerc
 


Member Since: 16 Dec 2014
Location: São Paulo
Posts: 57

Brazil 2007 Discovery 3 TDV6 S Auto Barolo BlackDiscovery 3

Hello

Diesel
Drove to work, battery dead after 8 hours...
cranks and runs for 2 seconds
not shure about the self check
no errors in dash
pumps ok, as it runs

Globetrotter448 wrote:
Need to get it clear in my mind. Not in any particular order.

1. Its a diesel
2. you drove it and battery died - no problems prior to this
3. it cranks and runs for a couple of seconds or just cranks
4. It has fuel under pressure going to all injectors (disconnect an injector pipe to see)
5. No noises when it runs for a few seconds
6. Compression is okay
7. When switched on, vehicle goes through its system check ok
8. You have got diesel in the tank
9. the fuel pumps runs (I think there are two on diesels)

The simple view: Embarassed
Diesels engines fire via compression and fuel being injected at the right time. These engines have sensors to detect when to squirt fuel (have you checked these). The fuel is pressurised by the fuel pump sometimes via a filter.

Now if all this is correct it should run. Diesels stop when you cut the fuel supply.
  
Post #18875807th Dec 2017 11:28 am
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8044

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

He has an IID tool, should not that pick up a faulty sensor and give a fault code?- am I wrong in thinking live values can be run on all sensors.
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #18875897th Dec 2017 12:12 pm
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