Home > Technical (L322) > Lost communication with transmission module HELL |
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Haylands Member Since: 04 Mar 2014 Location: East Yorkshire Posts: 8246 |
Still putting my money on the battery... Personally I don't believe in coincidence.
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22nd Nov 2024 1:43pm |
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Furnitureman Member Since: 26 Jan 2021 Location: Leicestershire Posts: 350 |
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
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22nd Nov 2024 1:49pm |
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Haylands Member Since: 04 Mar 2014 Location: East Yorkshire Posts: 8246 |
They can be very tricky sometimes and test you dearly.
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22nd Nov 2024 4:57pm |
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Haylands Member Since: 04 Mar 2014 Location: East Yorkshire Posts: 8246 |
They can be very tricky sometimes and test you dearly.
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22nd Nov 2024 4:58pm |
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Dtech Member Since: 29 Nov 2014 Location: Yorkshire Dales Posts: 52 |
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 |
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22nd Nov 2024 6:16pm |
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Furnitureman Member Since: 26 Jan 2021 Location: Leicestershire Posts: 350 |
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
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23rd Nov 2024 11:56am |
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Dtech Member Since: 29 Nov 2014 Location: Yorkshire Dales Posts: 52 |
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] |
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23rd Nov 2024 12:59pm |
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pjw888 Member Since: 04 May 2023 Location: Dumfries Posts: 28 |
Hi there, I did send you a om with some suggestions. I wondered if you had progressed and fixed this fault? |
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25th Nov 2024 6:24pm |
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Furnitureman Member Since: 26 Jan 2021 Location: Leicestershire Posts: 350 |
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
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28th Nov 2024 11:12am |
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Furnitureman Member Since: 26 Jan 2021 Location: Leicestershire Posts: 350 |
Just had garage do another scan on there snap on diagnostic kit, they can’t even “talk” to the transmission module so I’m going to check fuses and earths and try to get underneath to make sure there is no damage to the wires going into the gearbox 2012 Range Rover Westminster 4.4 TDV8
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30th Nov 2024 3:44pm |
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Furnitureman Member Since: 26 Jan 2021 Location: Leicestershire Posts: 350 |
Just had garage do another scan on there snap on diagnostic kit, they can’t even “talk” to the transmission module so I’m going to check fuses and earths and try to get underneath to make sure there is no damage to the wires going into the gearbox not sure what else to do 2012 Range Rover Westminster 4.4 TDV8
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1st Dec 2024 1:05pm |
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Dtech Member Since: 29 Nov 2014 Location: Yorkshire Dales Posts: 52 |
As mentioned in my previous post. Did you check/clean the connection with the trans module under the bonnet, and the fuses and connections to it? |
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1st Dec 2024 3:13pm |
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Furnitureman Member Since: 26 Jan 2021 Location: Leicestershire Posts: 350 |
Hi Dtech yes mate unplugged, checked all the pins they looked ok sprayed with contact cleaner then put back together, checked and cleaned all fuses, can you tell me which fuse is the one for the module and which wire you checked for continuity please then I can do the same 2012 Range Rover Westminster 4.4 TDV8
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2nd Dec 2024 5:23am |
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RRPhil Member Since: 22 Aug 2011 Location: Blackburn, Lancashire Posts: 969 |
I don’t know if this is any help at all but, as the 8HP70 Mechatronic is E-shift rather than M-shift (6HP26 & 28 ), the electronic module only uses seven wires to communicate and receive power to/from the vehicle.
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4th Dec 2024 8:08pm |
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