Faulty Speedometer Screen

[EVfanatic]

The speedometer screen on our MG4 SE went completely black after about 5-10 seconds of getting in the car so turned the car off and back on and now the screen won't come on at all. I presume the car has no warranty for this issue as was previously Cat S. I have spoken with the previous owner who had the accident and he's said he was having intermittent issues with the screen. Before I go and buy another screen to try does anyone have any other ideas for things I could try? I've tried disconnecting from the 12v battery which did nothing. Thank you in advance.

 

[Geekice]

Check the fuse F7 in the passenger compartment. Also, if you have or want to buy a VDI you can try a reprogram via sips.

 

[EVfanatic]

Check the fuse F7 in the passenger compartment. Also, if you have or want to buy a VDI you can try a reprogram via sips.

Thanks, I'll check the fuse tomorrow, I honestly didn't think it was a fuse with it being an intermittent fault that's got worse over time but definitely worth checking.

 

[Diggsy]

Did you give the 12v disconnect the full 15mins to reset?

 

[EVfanatic]

Did you give the 12v disconnect the full 15mins to reset

I gave it an hour

 

[EVfanatic]

Check the fuse F7 in the passenger compartment. Also, if you have or want to buy a VDI you can try a reprogram via sips.

Checked fuse and it's fine.

I spoke with MG and they said they've seen this before and sometimes it's fixed with an update but sometimes a replacement screen. as my car has no warranty and can't legally be driven it would be quite costly to arrange recovery, diagnostics, updates, parts etc... My OBD Scanner (Launch CRP919X) doesn't go deep enough to do anything useful to fix this so looking at this VDI.

So a few questions if you don't mind helping? I have read read some threads on here but they are very long and information appears to be regularly changing.

I presume need the VDI to update the car?
What's the value best model to buy and where from?
Do you know of the odementer screen needs programming or can I just install a replacement?
I also only have 1 key so if I can do that with the VDI then bonus.

Just been doing some more research and found the VNCI version of the VDI for about £110. I guess that's the one then.

 

[Geekice]

So, the process is actually pretty straightforward. You need a Windows computer (not too underpowered), the VDI. Personally, I use a VNCI, which is a copy; this is the one I use: VNCI VDI3 for Rongwei MG Wuling Baojun Datong Diagnostic Interface Support DoIP and CANFD Protocol,Fit for SAIC group Software - AliExpress 34. You also need SIPS and VCI Manager installed, you can find the files on this drive: Mg software. If you are using the VNCI, you also need VNCI Manager, which is used to update the VNCI firmware and is recommended before the first use.

Once you have everything, you should register as a company and buy an account on: https://rmi.mgmotor.eu/. Here is a guide I wrote for the whole process:

If you want, we can try doing this registration together in chat. I just tried, and I was able to create another account and immediately received the verification code. Just to verify, can I ask if you followed these steps in this exact order?

1. Open: https://rmi.mgmotor.eu/
2. Click Login
3. Click Register an account
4. Enter First name, Last name, and Email, but do not enter the phone number yet.
5. Click "Click to start verification" next to the email field.
6. Verify your email.
7. Only after email verification, enter the phone number and the other required information.

P.S. Feel free to reach out to me in chat if you need any help

And also this is my guide tu buy an account:

You need to click "start standardised navigation"
View attachment 35441
Then click the second option "payment"View attachment 35442
And then you can buy some time for access to documents or for diagnostics.
View attachment 35443

When you have an account, for the IPK (this is what the central screen is called), I am not sure if one hour will be enough because the update is very long. You could try buying one hour just to see if the module communicates and if it does, buy a full day. Connect the VDI and open SIPS, log in with your purchased account, and perform the identification. Normally, you would see all the warning lights and possible errors on the IPK, along with various dongle notifications and app or SMS alerts. When SIPS finishes the identification, click OK and everything returns to normal.


At this point, go to the Programming and Coding section. If the IPK communicates, you should see it with Xs or checkmarks. Click it and select the Replacement function at the bottom to perform a full reprogramming, or you could first try OnePress, select only the IPK, and perform the reprogramming from there.


Another important thing: make sure you have a 12V battery maintainer because during some phases of the process the battery will not hold charge and could drop, potentially damaging the module. Also ensure you have a stable internet connection and a charger for your computer.

 

[EVfanatic]

So, the process is actually pretty straightforward. You need a Windows computer (not too underpowered), the VDI. Personally, I use a VNCI, which is a copy; this is the one I use: VNCI VDI3 for Rongwei MG Wuling Baojun Datong Diagnostic Interface Support DoIP and CANFD Protocol,Fit for SAIC group Software - AliExpress 34. You also need SIPS and VCI Manager installed, you can find the files on this drive: Mg software. If you are using the VNCI, you also need VNCI Manager, which is used to update the VNCI firmware and is recommended before the first use.

Once you have everything, you should register as a company and buy an account on: https://rmi.mgmotor.eu/. Here is a guide I wrote for the whole process:

And also this is my guide tu buy an account:


When you have an account, for the IPK (this is what the central screen is called), I am not sure if one hour will be enough because the update is very long. You could try buying one hour just to see if the module communicates and if it does, buy a full day. Connect the VDI and open SIPS, log in with your purchased account, and perform the identification. Normally, you would see all the warning lights and possible errors on the IPK, along with various dongle notifications and app or SMS alerts. When SIPS finishes the identification, click OK and everything returns to normal.


At this point, go to the Programming and Coding section. If the IPK communicates, you should see it with Xs or checkmarks. Click it and select the Replacement function at the bottom to perform a full reprogramming, or you could first try OnePress, select only the IPK, and perform the reprogramming from there.


Another important thing: make sure you have a 12V battery maintainer because during some phases of the process the battery will not hold charge and could drop, potentially damaging the module. Also ensure you have a stable internet connection and a charger for your computer.

Wow what a reply. This is perfect, thank you. Ordering the VNCI now and will just have to be patient. I do love a new toy...

I have created an account in my business name. When you say buy an account do you mean paying the hourly/daily rate or is this something else I need purchase?

 

[Geekice]

Wow what a reply. This is perfect, thank you. Ordering the VNCI now and will just have to be patient. I do love a new toy...

I have created an account in my business name. When you say buy an account do you mean paying the hourly/daily rate or is this something else I need purchase?

Yes, I mean paying the hourly or daily fee. I say “buy an account” because after the purchase, by clicking on your name at the top right and then on User Profile, you will see some usernames and passwords: one for the EPC (used to view spare parts) and the one we care about, SNW, for SIPS.

 

[EVfanatic]

So, the process is actually pretty straightforward. You need a Windows computer (not too underpowered), the VDI. Personally, I use a VNCI, which is a copy; this is the one I use: VNCI VDI3 for Rongwei MG Wuling Baojun Datong Diagnostic Interface Support DoIP and CANFD Protocol,Fit for SAIC group Software - AliExpress 34. You also need SIPS and VCI Manager installed, you can find the files on this drive: Mg software. If you are using the VNCI, you also need VNCI Manager, which is used to update the VNCI firmware and is recommended before the first use.

Once you have everything, you should register as a company and buy an account on: https://rmi.mgmotor.eu/. Here is a guide I wrote for the whole process:

And also this is my guide tu buy an account:


When you have an account, for the IPK (this is what the central screen is called), I am not sure if one hour will be enough because the update is very long. You could try buying one hour just to see if the module communicates and if it does, buy a full day. Connect the VDI and open SIPS, log in with your purchased account, and perform the identification. Normally, you would see all the warning lights and possible errors on the IPK, along with various dongle notifications and app or SMS alerts. When SIPS finishes the identification, click OK and everything returns to normal.


At this point, go to the Programming and Coding section. If the IPK communicates, you should see it with Xs or checkmarks. Click it and select the Replacement function at the bottom to perform a full reprogramming, or you could first try OnePress, select only the IPK, and perform the reprogramming from there.


Another important thing: make sure you have a 12V battery maintainer because during some phases of the process the battery will not hold charge and could drop, potentially damaging the module. Also ensure you have a stable internet connection and a charger for your computer.

VNCI arrived. It's not giving me any options to update the VNCI. Do you know if this is correct, don't want to connect to the car if it's not up to date. Thanks

 

[EVfanatic]

Also I'm selecting VCI 3 is that correct?

 

[Deepbluexl]

VNCI arrived. It's not giving me any options to update the VNCI. Do you know if this is correct, don't want to connect to the car if it's not up to date. Thanks

You should use the VNCI Manager to update it's firmware. This tool is as well on the Google drive. Last time I checked for Firmware it was 1009. For connection to Sips the VDI 2 Has to be selected... Connection should be straightforward in the Bosch Interface screen..
Maybe check the manual that Haloweenhamster has provided..

 

[EVfanatic]

Just an update to this. I've plugged the car in with the VNCI and followed the many instructions on this site, many thanks to everyone. It's saying no communication with the Speedo (IPK). I know the previous owner of the car had an intermittent issue and I had it working when I first got the car but then dead completely. So could be either corrupt software, dead hardwear or a wiring issue. I've visually checked the wiring and all looks ok. So I'm now updating the whole car and if that doesn't work I'll buy a used Speedo and hope they're not VIN locked and try to install it. 2hrs to go with updating.

 

[EVfanatic]

So the plot thickens......

I updated the car but half a dozen failed due to no communication with the IPK which is understandable. So I thought I'd thoroughly check all the wiring before I go any further. There was also a dashcam going into the fuse box that I wanted to remove. The dashcam was actually plugged into the USB port above the fuse box which is good to know that's there and can potentially be used for that.

However to remove the dashcam I had to disconnect the low voltage fuse box as there was loads of cable ties etc added behind it, when I did this i heard a relay click and the screen came on. When plugged back in again the screen goes off, all that's being removed is a ground screw. So I took it out completely and discovered an immobiliser wired behind the fuse box which doesn't look factory.

Now am going to figure out how that's wired up, if anyone knows if this is an aftermarket part or maybe added for the UK market can you please let me know.

Thanks

 

[Panther]

What? There's a USB built into the fuse box? Am I reading that right?

 

[EVfanatic]

What? There's a USB built into the fuse box? Am I reading that right?

Sadly not, I did think that was the case as the dashcam was plugged into it but then found it was yet another module as part of the tracker device.

 

[Panther]

Thought that would be too easy and why I'd never heard anyone else mention it, would have been cool though, looks like going through the usual 'piggy back' of another fuse method for fitment then.

 

[Geekice]

Sadly not, I did think that was the case as the dashcam was plugged into it but then found it was yet another module as part of the tracker device.

That Samsara module is a device used to remotely monitor the vehicle. It sends GPS data to (some company?) and also gives access to the vehicle’s CAN network. I’ve attached the device datasheet. You might want to check if the vehicle used to belong to any company before.

 

[Geekice]

So the plot thickens......

I updated the car but half a dozen failed due to no communication with the IPK which is understandable. So I thought I'd thoroughly check all the wiring before I go any further. There was also a dashcam going into the fuse box that I wanted to remove. The dashcam was actually plugged into the USB port above the fuse box which is good to know that's there and can potentially be used for that.

However to remove the dashcam I had to disconnect the low voltage fuse box as there was loads of cable ties etc added behind it, when I did this i heard a relay click and the screen came on. When plugged back in again the screen goes off, all that's being removed is a ground screw. So I took it out completely and discovered an immobiliser wired behind the fuse box which doesn't look factory.

Now am going to figure out how that's wired up, if anyone knows if this is an aftermarket part or maybe added for the UK market can you please let me know.

Thanks

The immobilizer in the photos is also from the same company (Samsara) and, in theory, should be connected to the other module via USB or CAN to remotely block the vehicle. These are often installed by companies with large fleets assigned to employees for work use only, not personal use, so they can keep track of them.

 

[EVfanatic]

That Samsara module is a device used to remotely monitor the vehicle. It sends GPS data to (some company?) and also gives access to the vehicle’s CAN network. I’ve attached the device datasheet. You might want to check if the vehicle used to belong to any company before.

Thanks, I did look for a wiring diagram for a few minutes but couldn't find one so I appreciate that, I'll take a look.

It comes in 3 components, the dashcam, the module and the immobiliser.

The dashcam was just attached via USB to the module, so that's removed.

The module was connected via an OBD splitter, so that's now removed.

But the immobiliser seems so go much deeper to the point it looks like I'm going to have to remove the dashboard to get to the wiring which seems crazy. I've removed plenty of dashboard before so not an issue for me but feels extreme. There's two wires that are taped up to the existing loom and I've put my hand up deep into the dash and can't feel them come out. I'm concerned they're effecting other systems so want it out.