Am also searching through the workshop manual for the gearbox heat exchanger cooling side , just trying to cover all bases so to speak

As there’s the flat plate gearbox cooler with the 2 x pipes for the atf oil side and other 2 x pipes from the engines water cooling side

Will come back to u if I find out any further details for u mate , ie, if the overheat temps are in the workshop manual etc so then at least we will know what the trigger points are so then could look via the live data on the scanner

Blimey these workshop manuals have a lot of pages

Just had it in the back of my mind if there was anything else that could also cause issues and started to look on the cooling side of the ATF heat exchanger and came across these , alas haven’t confirmed as of yet if u have one fitted to ur model

Don’t know if ur able to see any of these items as of yet plse , particularly if things are in the way

IE

The Automatic Transmission Fluid (ATF) warming valve is a thermostatic ATF mixing valve. The valve is designed to reduce the ATF warm up time and provides a precise temperature control for the ATF temperature. The ATF warming valve mixes the hot engine coolant from the thermostatic control valve and the cold engine coolant from
the radiator low temperature zone. This provides the desired temperature control of the ATF temperature.


Hope it’s useful mate and expect I’m totally barking up the wrong tree but wished to try and read up as much as I could of the workshop manual in case there was something else

Plus looking at some pictures I think that round transmission electrical connector may twist off instead of directly being pulled off , I will of course try and see if that’s the case or not mate

Hope this may also be useful to u mate

Ref that picture of temperatures , do u have the left hand side of the picture to show what sensors there reading plse

As maybe there from an ATF warming valve

Many thks and when u get chance if you would be so kind to have a look if there’s one fitted by ur engine plse , thk u

Oh wow never seen these before

Also finally managed to find better pics of that connector both inside and out

Ref cloning of tcm, for the 9hp 48


The 9HP TCM is known to have internal faults, in which case the TCM should be replaced however JLR does not sell the TCM as an individual spare part, neither does ZF. In which case the only economical alternative is to source a used TCM, but the VIN of the vehicle is stored in the TCM and in case of VIN mismatch, various faults will be reported on the dashboard and the transmission will be stuck in limp mode.

We are able to clone your existing TCM into the used replacement, or virginise a used TCM that it can be programmed as a new module to the vehicle.

Hi little round thing is grommet for air box, looks like a pipe in picture I must admit, worked through it today, down to sump at last everything came off useable and undamaged, lot of hassle but wanted a good view, you can now get a good view of cooler I fitted, couple of small oil leaks and replacing all air con orings bit of zinc here and there
Parts arrived just now temperature sensor is the little bit sticking out from sensors at 45°
Next job is to clean all around area before removing sump most likely Wednesday
Clean up an bench sort out first and work keeps getting in way
Haven't found anything obvious at moment but early days yet
All the best

Thanks again mate will see what happens next as bits now arrived, but would be a great saving if that's the next step, fingers crossed its sensor, what a gerfuffule to get too, and to put back I'll bet, many thanks once again mate, will let you know readings once I get it out and unplugged
All the best