Range rover sport dead

HELLO EVERYONE.
HOPE SOMONE COULD SHED SOME LIGHT ON A LITTLE PROBLEM WE HAVE.
ITS A RANGE ROVER SPORT 08 TDV6. IT IS SHOWING A MULTITUDE OF ERRORS ON THE MESSAGE CENTRE. ( ENGINE SYSTEM FAILURE, TRANSMISION FALURE, PARK BRAKE FAILURE, AIR SUSPENSION INACTIVE & SO ON). DIAGNOSTICS WILL ONLY GO INTO BCU, AIR SUSPENSION PARK BRAKE & STEERING ANGLE. AND ALL OF THESE SHOW COMMUNICATION ERRORS WITH OTHER MODULES. THE OTHER MODULES IE: ECM, ABS, TRANSMISION WILL NOT CONNECT TO THE DIAGNOSTICS,HAZARD LIGHTS CONTINUE TO FLASH AND THE ENGINE WILL NOT CRANK. WE SUSPECT A FAULT ON THE CAN BUS AND HAVE TRIED UNPLUGGING OTHER MODULES BUT WITH NO JOY, SO NOW WE TURN TO THE WEALTH OF KNOWLAGE FOATING AROUND THIS FORUM. ALL COMMENT WELCOME EVEN THE GALLON OF PETROL & A BOX OF ENGLANDS GLORY!!

pardon?

no need to SHOUT about it

Not too sure about the sport, but a common problem on the P38 is the the charge on the battery or wrong ampage.

When the battery loses any voltage all the error messages come up on the message board, only a thought but just check you have correct size battery or if it's fully charged

Sounds very like low battery volts to me and/or a duff alternator. Don't shout if you reply

As said above, if it was a P38 I would suspect the battery. Mine showed plenty of ugly messages when the battery was dead. Do you drive only short journeys? This would be another element pointing to a dead battery. It could also be a tired alternator not charging the battery. But start with checking the battery.
CAPITAL LETTERS = TO SHOUT just in case

Its not the battery, thats fully charged, the car stopped dead in the middle of the road hazards going and loads of faults on the message centre, no control modules are communicating & diagnostics says "module not available" to most modules. oh and the temp gauge is at the top as soon as you turn the ignition on.

p.s sorry about SHOUTING i didnt realise capitals ment that.

To test your can connection find can high and can low and resistance check over the two should be 120ohm closed and 60ohm open then if it's showing down begin the unplugging modules untill the resistance returns might be 70ohm and 50 ohm respective as I am quoting higher voltage uses

I would bet my x5 you have an voltage issue. Have you tested the battery with a drop tester?. After that it will be earth straps or battery connections.

rewmer said:

I would bet my x5 you have an voltage issue. Have you tested the battery with a drop tester?. After that it will be earth straps or battery connections.

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Wot he said plus alternator.

Earths.. battery.... alternator or all 3

SORTED IT!!! It was corrosion in the loom to rear of vehicle causing high resistance to the can bus signal!! just having a victory cigar!!!

someone owes me an X5 !!!!:cheer2:

have you got a sunroof on that sport of yours, cos the drain pipes run through the rear and when they block they very happily leak into the vital areas with all the elecrics in ... might of caused the problem.

That's rather unimpressive on such a young vehicle.

Depressing to note that LR electrics don't seem to have improved.

Glad you sorted it.

lrx greg said:

SORTED IT!!! It was corrosion in the loom to rear of vehicle causing high resistance to the can bus signal!! just having a victory cigar!!!

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Hi pls i think i am having this same problem. i wish to know if your key security light flashed aswell? mine stopped in the middle of road and i also got a dumped alternator but after replacing the alternator, the car could not still start with the hazard light keep flashing, temp gauge moves to the top, key security light flashes etc. i have also replaced the battery with a brand new of same capacity but no luck pls any little help will be counter in millions thnks in advance

samorano said:

Hi pls i think i am having this same problem. i wish to know if your key security light flashed aswell? mine stopped in the middle of road and i also got a dumped alternator but after replacing the alternator, the car could not still start with the hazard light keep flashing, temp gauge moves to the top, key security light flashes etc. i have also replaced the battery with a brand new of same capacity but no luck pls any little help will be counter in millions thnks in advance

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And you are hoping to get an answer on a thread that is three years old. Read the thread it may just give you an incling.

wammers said:

And you are hoping to get an answer on a thread that is three years old. Read the thread it may just give you an incling.

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am like confused on the situation cuz my my local land rover tech here had made me buying a new alternator it didnot resolved the problem then went futher buying a new engine ECU still didnt solve the problem i just thought talking with your guys could come up with somthing