Hi,

I recently found that the TCM for my LR Freelander2 HSE (2011) isn't working. The vehicle in limping in the 3rd gear and the only other gear that it has is the Reverse gear. Yes of course the park gear and neutral are all working, but the drive is only in 3rd gear.

After some googling I could find that the part that matches my VIN number is LR014467 and I purchased one. Once the part reached me I found that the circuit in it is entirely different from the one I have. I had to do it this way bcos the writings on my TCM are all faded out and is completely blank. The only thing I could figure out from it is a serial number.


The one on top (with those small chipsets) is the one I recieved as LR014467 and the one from my vehicle is the one below.

Now that the vehicle cannot be moved without the TCM, I am in search of this module.

Upon more research I could find that there are 2 part numbers for LR Freelander2!
LR014467 (Original TCM)
LR031137 (Alternate/Regional TCM)
Don't know if this is true or not.

I found one listed in this linkhttps://www.gumtree.com.au/s-ad/wingfield/...1307054756
This one is for Mazda CX9, but that is the only one I could find on based on the outer appearance of my TCM. I also close compared with those numbers on mine with the one in link.

Can someone help me with the some inputs on whether this will be compatible, at the least by reprogramming it.

This 'Limp Home' Explanation was in the linked thread below.

Limp Home
If a transmission fault is detected by the TCM, the TCM adopts a limp home strategy and a message 'TRANSMISSION FAULT LIMITED GEARS AVAILABLE' is displayed in the message center. If the fault has an effect on engine emissions, the MIL in the instrument cluster will also be illuminated.
In limp home mode, P, R and N functions operate normally (if the fault allows these selections) and the TCM locks the transmission in 3rd gear to allow the driver to take the vehicle to a Land Rover dealer or approved repairer. Torque converter lock-up is disabled and reverse-lock-out will not function.
If the vehicle is stopped and subsequently restarted in the limp home mode condition, the TCM operates normally until the fault which caused the condition is detected again.

https://www.freel2.com/forum/topic32549.html?highlight=aisin

Does stopping (Double Locking) and restarting reset the fault? FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles) (MY2011)
FL2 Metropolis SD4 Auto 2014 2017- (16k - 77k+ miles) (MY2015)
Metro in its 11th Year of (Extended) LR Warranty / Full LR Service History
(Expensive, but Trouble/Worry free - hopefully?)

Last edited by IanMetro on 20th Aug 2024 5:50 pm. Edited 1 time in total

Worth trying other forums as the Aisin Auto Gearbox is widely used including the closely related Volvo XC60.
https://volvoforums.com/forum/volvo-s60-v6...ars-59684/ FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles) (MY2011)
FL2 Metropolis SD4 Auto 2014 2017- (16k - 77k+ miles) (MY2015)
Metro in its 11th Year of (Extended) LR Warranty / Full LR Service History
(Expensive, but Trouble/Worry free - hopefully?)

What DTC Error Codes are you getting?
Unless you you already know why the Transmission Control Module is giving 'Limp Mode' then it is worth a look as something External or Internal to the Autobox may have failed and the TCM is asking correctly for 'Limp Mode'.

The Freelander Repair and Wiring Diagrams Manual (in this link) has pages and pages of info and DTCs for the TCM starting on page 141 (of 3229)
https://www.freel2.com/forum/topic31381.ht...013+wiring FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles) (MY2011)
FL2 Metropolis SD4 Auto 2014 2017- (16k - 77k+ miles) (MY2015)
Metro in its 11th Year of (Extended) LR Warranty / Full LR Service History
(Expensive, but Trouble/Worry free - hopefully?)

LR006370 - МОДУЛЬ ECU (MODULE - ECU) [ (V)AH000001 - ]
LR006370 - МОДУЛЬ ECU (MODULE - ECU) [ - (V)9H999999 ]
LR014467 - МОДУЛЬ ECU (MODULE - ECU) [ (V)AH000001 - ]
LR014467 - МОДУЛЬ ECU (MODULE - ECU) [ (V)BH000001 - (V)CH999999 ]
LR031137 - МОДУЛЬ ECU (MODULE - ECU) [ (V)CH000001 - ]
LR031137 - МОДУЛЬ ECU (MODULE - ECU) [ (V)DH000001 - ]

But I wonder if there are different code numbers within those LR numbers

Thanks for all your responses! Love this community

A bit more to the history:
When it limped first, the error it was throwing on the scanner was:



Seeing the "solenoid A pressure control" error, I had the valve body replaced, but post that the scanner was still throwing the same error!
Valve body


That's how we pinpointed the issue to that of TCM and got the replacement one - LR014467
Upon fitting the new TCM the error that's coming up is P0614-00.



On a separate question, how can I figure out the part number from the TCM I have got.

This is the one I got as LR014467


Having said the whole history, this issue has already burnt my pocket a bit, I am extra cautious going forward. And you guys are helping me a lot on those.
Thanks a lot mates!!

IanMetro wrote:

This 'Limp Home' Explanation was in the linked thread below.

Does stopping (Double Locking) and restarting reset the fault?

Thanks for history, I did not know from the original post how much you had already investigated.

Are you sure that the signal is getting to the TCM, and you haven't a damaged loom/wiring/connector, if so this would save changing TCM..

Click image to enlarge

Apologies for not having the entire history initially!

Tomorrow I am gonna check it for those issues highlighted (and the listed ones too, whichever possible)

Corroded or damaged connector
Faulty or damaged wiring

I've actually had this problem and solved it by replacing the TCM but it won't work unless you can code it to the vehicle using SDD and you also need the old TCM as part of the coding sequence as long as the part number is the same this is possible using a used TCM takes about an hour to do

I'd recommend you contact a business called auto fault finder.

https://www.haldexrepairs.co.uk/

He tests and repairs the control modules for haldex. He did one for our VW Tiguan 4motion. Also sells haldex service parts. Very helpful and knowledgeable guy. Landrover - turning owners into mechanics since 1948

2014 Orkney grey Freelander SD4 GS.
2004 Zambezi silver Discovery 2 Td5 (Gone)
1963 Surf blue Morris Mini Minor Super de Luxe (my little toy)

From the Repair Manual

Line Pressure Control Solenoid - SLT

The line pressure control solenoid (SLT) is installed on the front valve body. The solenoid is controlled in a linear manner by the TCM which uses throttle opening degree signals and engine torque information from the Engine Control Module (ECM) to determine the solenoid operation. The solenoid controls the line pressure applied to the clutches and brakes to provide smooth shifting.

If the solenoid fails, the TCM will remove the current supplied to the solenoid. Maximum line pressure will be applied to the clutches and brakes unless the failure is due to the solenoid valve sticking, which may result in low line pressure.

It doesn't say, but at a guess, the STL (Line Pressure) is governed by a PWM (Pulse Width Modulation) signal from the TCM.

As for part numbers, when I Google for FL2 TCM this is what comes up. (LR031137) ?
https://parts.jaguarlandroverclassic.com/l...wwCEBqem52


PS Interestingly on another subject of 'Hard Auto Gearshifts' is this solenoid sticking/failing the cause of those poor hard changes in and out of gear? FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles) (MY2011)
FL2 Metropolis SD4 Auto 2014 2017- (16k - 77k+ miles) (MY2015)
Metro in its 11th Year of (Extended) LR Warranty / Full LR Service History
(Expensive, but Trouble/Worry free - hopefully?)

Thanks for the responses buddies!

Sorry for the delayed response, as I was away from the internet for few days.

Current status is that, I am sourcing a new TCM. Hope to get in a week or more.
Solenoids are all tested already, the current from them looks good to the mechanic. Earlier it had an issue in one of the solenoid current and that's how I ended up replacing the valve body. That's how now we are nailing it down to faulty TCM.

Fingers crossed! Waiting for the TCM and hope it should clear all the faults.

Hey. I'm from Bangalore as well. I have a 2013 SD4 HSE. I use Sayara Motors as my FNG and he's quite good. Who do you use and where are they located?

Quote:

Hey. I'm from Bangalore as well. I have a 2013 SD4 HSE. I use Sayara Motors as my FNG and he's quite good. Who do you use and where are they located?

Hi. Cool!

I am right now located in Kochi, Kerala.
When I was in Bangalore, Bay6 located in Hosa road was my regular place, close acquaintance with the folks there

Will PM you with my details and will connect if you are okay. I feel it's always best to connect in case of such kinda serious issues.

Thanks for the response!