So sad face part for now.
1958 vs LCLC off-road software (A-TRAC(?) vs MTS)
- Thread starter n0m@d
- Start date
Interesting did you try a battery disconnect to reset everything?
This is what the multiverse says to do
For the 2025 Land Cruiser 250, after installing a new MTS (Multi-Terrain Select) switch, you may need to reset or reinitialize the system, depending on the exact component and how Toyota has integrated it with the vehicle’s electronic control modules. Here’s what typically applies:
General Guidance for Replacing the MTS Switch:- No special coding is usually needed just for a basic switch replacement.
- However, if the MTS switch assembly includes electronic circuitry, or if it interfaces directly with the vehicle’s ECU, a reset or calibration may be required.
Steps After Replacing MTS Switch:- Disconnect the negative battery terminal for 10–15 minutes to perform a soft ECU reset.
- After reconnecting, start the vehicle and check:
- If MTS settings display properly on the screen
- If any warning lights (like 4WD, VSC, or check engine) appears
If Errors Persist:You may need to use a Toyota-compatible scanner (e.g., Techstream or a high-level OBD2 like the KINGBOLEN SoloScan or Carista) to:
- Clear DTCs
- Initialize the system
- Check for any communication issues with the 4WD or MTS module
Pro Tip:If the MTS switch controls terrain response, it’s tied into the 4x4 control ECU. If the ECU detects a mismatch or disconnection, it may disable MTS until it’s reset.
Recommended Action:After replacing the MTS switch, perform a battery reset.
- If the system still doesn’t work correctly:
- Use a scanner to clear codes
- Run an initialization or calibration routine
- Refer to Toyota’s service manual or Techstream for MTS system learning procedure
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Yes
I will go through all of this a little later. It’s hot and muggy as hell out here. I don’t have one of those specific scanners but I’ll try everything else.Interesting did you try a battery disconnect to reset everything?
This is what the multiverse says to do
For the 2025 Land Cruiser 250, after installing a new MTS (Multi-Terrain Select) switch, you may need to reset or reinitialize the system, depending on the exact component and how Toyota has integrated it with the vehicle’s electronic control modules. Here’s what typically applies:
- No special coding is usually needed just for a basic switch replacement.
- However, if the MTS switch assembly includes electronic circuitry, or if it interfaces directly with the vehicle’s ECU, a reset or calibration may be required.
- Disconnect the negative battery terminal for 10–15 minutes to perform a soft ECU reset.
- After reconnecting, start the vehicle and check:
- If MTS settings display properly on the screen
- If any warning lights (like 4WD, VSC, or check engine) appears
You may need to use a Toyota-compatible scanner (e.g., Techstream or a high-level OBD2 like the KINGBOLEN SoloScan or Carista) to:
- Clear DTCs
- Initialize the system
- Check for any communication issues with the 4WD or MTS module
If the MTS switch controls terrain response, it’s tied into the 4x4 control ECU. If the ECU detects a mismatch or disconnection, it may disable MTS until it’s reset.
After replacing the MTS switch, perform a battery reset.
- If the system still doesn’t work correctly:
- Use a scanner to clear codes
- Run an initialization or calibration routine
- Refer to Toyota’s service manual or Techstream for MTS system learning procedure
.
I also reached out to a tuner to fill them in and gain any potential insights or help.
@Justaron123 ..... Fantastic find...... may work with your instructions!!!! I am excited!
I’m just glad you finally got the part, regardless of if it works or not lol.
I don’t even have a 1958 yet I’m so invested (literally) in this saga. No rush at all, Rob, just know I’m popping a bag of popcorn right now.
Besides waiting for more potential ideas and hearing back from the tuner, next I’ll check if the same pins are being used for the plug. And since I have both parts I may be able to take both assemblies apart further to see if there is anything different within them.
But it’s late and that’ll have to wait for another day.
But it’s late and that’ll have to wait for another day.
The other two buttons work as they normally would.
Checking pins sounds like a good idea. The fact that MTS button gets no power makes me think the wiring to it does not have corresponding pins
Other options that come to mind are;
1) It is software locked.
2) Computer doesn’t have the necessary firmware, driver, etc.
3) MTS has/needs some type of module that this button controls (pins may tell).
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Yeah that’s stuff I’m wanting to find out. Hopefully we can narrow things down to find a more specific answer rather than a general “nope doesn’t work.”
So I heard back from the tuner, who as it turns out is also a LC250 owner, that even with the switch it can’t be enabled through software at this time.
depends of you have his module or not.
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Depends if you have this module or not.
The 89533‑60470 is the 4‑Wheel Drive Control Computer that includes full Multi‑Terrain Select functionality—used in the mid-level Land Cruiser and First Edition trims. It manages transfer case control, crawl control, and the 5 terrain mode selections
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Depends if you have this module or not.
The 89533‑60470 is the 4‑Wheel Drive Control Computer that includes full Multi‑Terrain Select functionality—used in the mid-level Land Cruiser and First Edition trims. It manages transfer case control, crawl control, and the 5 terrain mode selections
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To be honest, this is starting to turn into “building the entire MTS system”. If this module is installed, it will turnout 1958 do not have right brake actuators for MTS and so on.
Yeah but if we’re talking under $1k in parts that is a phenomenal value proposition for someone who wants MTS but otherwise doesn’t find value in the cost of a base model which is significantly more expensive than a 1958.
I have a soloscan I’ll try to go through the settings when I get out of clinic. If it’s just the panel and the module I agree that under 1k for the feature is a great value.
Based on everything I’ve read according to Toyota if you have the module already - verified through scanner or physically looking at the part number good. If you don’t you will need it. Along with software calibration/ reset it should work.
Only other issue is a harness but from the part numbers they seem to be the same.
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