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Furnitureman



Member Since: 26 Jan 2021
Location: Leicestershire
Posts: 346

United Kingdom 2012 Range Rover Westminster 4.4 V8 Cairns Blue
Lost communication with transmission module HELL

Thought I’d start a new thread as we have now narrowed the issue down to the above error code,

Started with using the pre heater then car started then all hell broke loose loads of errors flashing up and the gear knob would not raise, up until this the car started and ran perfectly.

I’ve had the battery checked and it’s all good but I will try a new battery from my van (similar size) just to finally rule out the battery.

I know the TCM is inside the gearbox but is there a control unit or plug in the engine bay or an earth lead I can check, on my old D3 there was a multi plug under the scuttle panel that could get damp inside and cause the terminals to corroded,

I’m desperate to get this sorted my wife has stage 2 Breast cancer and is halfway through chemo and hasn’t got the energy to drive, my only other option is my low Luton works van not great for her or parking,

Any help or tips will be gratefully received 2012 Range Rover Westminster 4.4 TDV8
2006 Discovery 3 HSE 260k miles and still going strong with a new owner

Post #705114 22nd Nov 2024 6:30am
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Haylands



Member Since: 04 Mar 2014
Location: East Yorkshire
Posts: 8192

England 2014 Range Rover Autobiography SDV8 Loire Blue

Still putting my money on the battery... Personally I don't believe in coincidence.

Please send my best to your wife, mine has just had breast cancer for the forth time so we do know how you feel... Pete

__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

Post #705137 22nd Nov 2024 1:43pm
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Furnitureman



Member Since: 26 Jan 2021
Location: Leicestershire
Posts: 346

United Kingdom 2012 Range Rover Westminster 4.4 V8 Cairns Blue

Thanks Pete i will do mate and hope your wife is doing well, what i dont understand is the battery will start the car no issues, it will start the gear knob will rise i can take hand break off but 5 seconds later all warnings on the dash gear knob goes down and you cand move it, if i put a charger on and try to clear the codes whilst its being charged it wont clear them just says update failed when clearing the codes, im asking around for a new battery to try but im loosing the will with this car now 2012 Range Rover Westminster 4.4 TDV8
2006 Discovery 3 HSE 260k miles and still going strong with a new owner

Post #705138 22nd Nov 2024 1:49pm
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Haylands



Member Since: 04 Mar 2014
Location: East Yorkshire
Posts: 8192

England 2014 Range Rover Autobiography SDV8 Loire Blue

They can be very tricky sometimes and test you dearly.

Hopefully a hard reset disconnecting the battery (which you will do when fitting a new one) and everything will be OK, I have heard of it taking a few times to clear the codes....

At least it's a relatively easy thing to do yourself, if, god forbid it doesn't work then at least voltage is ruled out...

My wife is fine at the moment thanks.... Pete

__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

Post #705154 22nd Nov 2024 4:57pm
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Haylands



Member Since: 04 Mar 2014
Location: East Yorkshire
Posts: 8192

England 2014 Range Rover Autobiography SDV8 Loire Blue

They can be very tricky sometimes and test you dearly.

Hopefully a hard reset disconnecting the battery (which you will do when fitting a new one) and everything will be OK, I have heard of it taking a few times to clear the codes....

At least it's a relatively easy thing to do yourself, if, god forbid it doesn't work then at least voltage is ruled out...

My wife is fine at the moment thanks.... Pete

__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

Post #705155 22nd Nov 2024 4:58pm
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Dtech



Member Since: 29 Nov 2014
Location: Yorkshire Dales
Posts: 48

England 2011 Range Rover Vogue 4.4 V8 Santorini Black

Mine did exactly this a while ago. The transmission module is just in front of the brake servo. I checked for continuity on the main feed from the fuses by the battery, through to the trans module and found a bad connection to the relevant fuse in the under bonnet fuse box

Post #705166 22nd Nov 2024 6:16pm
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Furnitureman



Member Since: 26 Jan 2021
Location: Leicestershire
Posts: 346

United Kingdom 2012 Range Rover Westminster 4.4 V8 Cairns Blue

Hi Dtech that sounds like my issue, anychance you could take some pitures of the areas i need to look at please mate 2012 Range Rover Westminster 4.4 TDV8
2006 Discovery 3 HSE 260k miles and still going strong with a new owner

Post #705216 23rd Nov 2024 11:56am
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Dtech



Member Since: 29 Nov 2014
Location: Yorkshire Dales
Posts: 48

England 2011 Range Rover Vogue 4.4 V8 Santorini Black

Sorry I won’t be able to provide pics as I am abroad at the moment. The fuse box under the bonnet is easy to see just to the left of the engine. I would also suggest removing the transmission module connector to check for corrosion etc. from recollection the trans module is just to the left of the wiper motor.[/quote]

Post #705225 23rd Nov 2024 12:59pm
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pjw888



Member Since: 04 May 2023
Location: Dumfries
Posts: 28

United Kingdom 2011 Range Rover Autobiography 4.4 V8 Stornoway Grey

Hi there, I did send you a om with some suggestions. I wondered if you had progressed and fixed this fault?

Post #705425 25th Nov 2024 6:24pm
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Furnitureman



Member Since: 26 Jan 2021
Location: Leicestershire
Posts: 346

United Kingdom 2012 Range Rover Westminster 4.4 V8 Cairns Blue

Thanks for all the replies I’ve been working away so not had chance to take a look. I replaced the battery with a new one unfortunately this did not help, I’m on site again until sat so I’ll check fuses and plugs then 2012 Range Rover Westminster 4.4 TDV8
2006 Discovery 3 HSE 260k miles and still going strong with a new owner

Post #705619 28th Nov 2024 11:12am
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