TPMS on new alloy wheels

[gazza487]

You, see on the pictures i can program the ecu of the car, i have a suspension that there is a problem with the receiver in the car, but dealer tell me receiver is okay

Just as a question… do you have any tools to pull the serial numbers from the car via obd and write to the tpms sensors ? Really sorry but I don’t know mucar system but sounds like you can write serial numbers to the sensors, the same way you can with autel?

There is only 1 receiver in the car which receives all the tpms and central locking.

It sounds like the tool is having problems writing to the ecu of the car. I’ve not taken the sensors out of a 4 but often they have the serial numbers on the sensors and you can write those to the new generic sensors - in effect cloning them.

On a different vehicle without access to this info and unable to write to the ecu (I have an autel that won’t write to the ecu) I used another tool to pull the numbers and wrote to the generic sensors.

Can you update the tool and try again ?

 

[william1167]

Mucar tool is like a Autel Ts501 tmps tool, I can read sensor, write sensor, clone sensor and communicate with obd. I bought a demo car MG4, on the car was 19 inch Alu wheels ( not original wheels). But the tmps sensors are I think original, when I search them i find it are Saic sensors, but don't know it are the original sensor of this car. When I drive with the car, the car give error. So I changed the sensors with Mucar sensors, I program the for sensors with random codes generated on the tool. But after that I can't write the information to the ECU with the OBD connection. So my problem stay the same. I suppose the ecu can accept random generated codes from the tool if you choose on the tool MG4 or not ?

 

[gazza487]

Mucar tool is like a Autel Ts501 tmps tool, I can read sensor, write sensor, clone sensor and communicate with obd. I bought a demo car MG4, on the car was 19 inch Alu wheels ( not original wheels). But the tmps sensors are I think original, when I search them i find it are Saic sensors, but don't know it are the original sensor of this car. When I drive with the car, the car give error. So I changed the sensors with Mucar sensors, I program the for sensors with random codes generated on the tool. But after that I can't write the information to the ECU with the OBD connection. So my problem stay the same. I suppose the ecu can accept random generated codes from the tool if you choose on the tool MG4 or not ?

As far as I know the ecu can accept the random codes the tool has generated but it looks like you are struggling to write them to it. My advice would be to update the tool first and see if you can complete the write. Failing that get the original serial numbers and write them to the programmable sensors.

 

[william1167]

As far as I know the ecu can accept the random codes the tool has generated but it looks like you are struggling to write them to it. My advice would be to update the tool first and see if you can complete the write. Failing that get the original serial numbers and write them to the programmable sensors.

Tool is with software 2024 and i don't know i can update it. Where can i find the original serial numbers?

 

[Tig170]

I have an Autel Ts501 , as per a few months ago (when I last updated the software), it still doesn't work via the odb port. The best way is to use the clone function via the TS501 on programable TPMS sensors which are around £5-10 on ali express (clones? - they look and operate the same as the genuine Autel MX ones), or £22 for the genuine Autel MX

 

[BeamingJim]

If it helps anyone, I got this cheap set from AliExpress and successfully cloned the factory wheel TPMS for replacement wheels. It includes the programming/cloning tool (which only required an Android app to use) and the 4 sensors.

THINKCAR THINKTPMS G2 TPMS Car Tire Pressure Diagnostic Tool Activate 315/433MHz Sensor Programming Learning Tool For Thinktool - AliExpress 34

THINKCAR THINKTPMS G2 TPMS - G2 with 4pcs S3

Cloning means no need to code or change anything on the car, so the wheels can be swapped back any time (as long as you get them in the correct corner). The readout on the dash is working fine with the new wheels.

I think it might be the same as the Mucar system, but don't quote me on that. . It's not Autel, but quite a bit cheaper for the programming tool.

Bonus AliExpress shopping tip - leave things in your cart a few days, sometimes you'll get an extra discount offer from the seller.

Edit - Apologies to william1167, I realise this doesn't help if you don't already have access to the original wheels.

 

[gazza487]

If it helps anyone, I got this cheap set from AliExpress and successfully cloned the factory wheel TPMS for replacement wheels. It includes the programming/cloning tool (which only required an Android app to use) and the 4 sensors.

THINKCAR THINKTPMS G2 TPMS Car Tire Pressure Diagnostic Tool Activate 315/433MHz Sensor Programming Learning Tool For Thinktool - AliExpress 34

THINKCAR THINKTPMS G2 TPMS - G2 with 4pcs S3

Cloning means no need to code or change anything on the car, so the wheels can be swapped back any time (as long as you get them in the correct corner). The readout on the dash is working fine with the new wheels.

I think it might be the same as the Mucar system, but don't quote me on that. . It's not Autel, but quite a bit cheaper for the programming tool.

Bonus AliExpress shopping tip - leave things in your cart a few days, sometimes you'll get an extra discount offer from the seller.

Edit - Apologies to william1167, I realise this doesn't help if you don't already have access to the original wheels.

That looks like a really good spot.

I can’t think what module int he car would contain the serial numbers to clone but it will be in there and a decent scan tool should see it if the weather wasn’t so bad I’d plug in and see. The original sensors have the serial numbers stamped on their cases.

Just as a note on the thinkcar tool autel (I am a fanboy tbh) do another cheap variety that seems similar called the toms pad which is just a pad you plug in via usb - was the first I bought and used to use a tiny netbook as it would work if you pressed it against the rim

 

[william1167]

If it helps anyone, I got this cheap set from AliExpress and successfully cloned the factory wheel TPMS for replacement wheels. It includes the programming/cloning tool (which only required an Android app to use) and the 4 sensors.

THINKCAR THINKTPMS G2 TPMS Car Tire Pressure Diagnostic Tool Activate 315/433MHz Sensor Programming Learning Tool For Thinktool - AliExpress 34

THINKCAR THINKTPMS G2 TPMS - G2 with 4pcs S3

Cloning means no need to code or change anything on the car, so the wheels can be swapped back any time (as long as you get them in the correct corner). The readout on the dash is working fine with the new wheels.

I think it might be the same as the Mucar system, but don't quote me on that. . It's not Autel, but quite a bit cheaper for the programming tool.

Bonus AliExpress shopping tip - leave things in your cart a few days, sometimes you'll get an extra discount offer from the seller.

Edit - Apologies to william1167, I realise this doesn't help if you don't already have access to the original wheels.

I make a clone today from 4 sensors from a other MG4, but my car don't take the info of the sensors. My problem I don't know how I can program the information from the sensors in the ECU of the car. With my tool it isn't work. Also when I drive now, it start with the original front 2.5 and back 2.8 and after a while er driving 4 x -- on the display and a yellow triangle symbol with the message tire pressure problem

 

[siteguru]

The TPMS serial numbers are hard-coded into the car ECU I believe. So all you can do is clone the old serial numbers into the new sensors.

 

[william1167]

The problem is the MG sensors that was installed in the Alu Wheels when I bought the car or that the original sensors or not ? If the serial numbers are fixed in the ECU and not can change, how can I know the serial numbers in the ECU, maybe also not possible to read them

 

[william1167]

This sensor was in the Alu wheels, I think is original MG but don't work in the car

 

[siteguru]

Perhaps you didn't properly understand my previous reply ... you need to read the sensors that were originally installed on the wheels that came with the car, and then clone them to the new sensors.

As far as I know it is not possible to read such data from the car ECU, so I doubt it's easily possible to change the ECU values.

 

[william1167]

That is why my problem is difficult to solved. Can't read data out ECU, I can't write new data in the ECU and I don't know the Original serial numbers of the sensors that is connected with the ViN number of the car. And I think MG Europe will not give me this information

 

[siteguru]

Read back in this thread ... others have mentioned sensors you can buy (Autel, or a cheaper version from AliExpress) that will read existing sensors and clone the serials to new sensors.

 

[william1167]

My problem isn't to clone sensors, that I can. But my problem is what are the original serial numbers of the sensors connected on my VIN car number

 

[ReintjeWA]

Surely there is a way to deal with this issue, if someone steals my rims, the dealer should be able to program some new sensors to my car, without the old sensors being available.

But it might be something only the dealer can do?

 

[Tig170]

My problem isn't to clone sensors, that I can. But my problem is what are the original serial numbers of the sensors connected on my VIN car number

...

I make a clone today from 4 sensors from a other MG4, but my car don't take the info of the sensors. My problem I don't know how I can program the information from the sensors in the ECU of the car. With my tool it isn't work. Also when I drive now, it start with the original front 2.5 and back 2.8 and after a while er driving 4 x -- on the display and a yellow triangle symbol with the message tire pressure problem

... thats not a TPMS coding problem (if you're getting a reading in the car then they are working), its telling you that the front tyres have not enough air in them.

 

[gazza487]

Circled is the serial number for one of the tpms sensors. Each sensor has a unique numbers so there are 4 numbers the car must know.
Those numbers are programmed into the car via obd. If you clone the sensors with each of those numbers and put them in the correct position on the car they should function.

The serial numbers can be read from the ecu (I can’t recall which module they are in). or if you have the correct tools you can write NEW serial numbers to the car so they match.

 

[william1167]

I can't read the serial numbers or write them in the ECU with my tool, maybe the reason is my tool, maybe the reason is that in an MG4, it is not possible to change serial numbers, and has the original serial numbers connected with the VIN number of the car. I don't know which is the case.