NefMoto

Technical => Cluster and Immobilizer => Topic started by: Gizmo06 on August 07, 2025, 06:19:36 AM



Title: IMMO OFF on MSA 15.5-7.2
Post by: Gizmo06 on August 07, 2025, 06:19:36 AM
Hi everybody

Is it possible to do an IMMO OFF on an MSA 15.5-7.2 with VAG_KCAN_Commander_2.5 ?

The car has the immo box reference 4A0 953 234 F.

Thank you ;-)


Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: Gizmo06 on August 08, 2025, 08:25:14 AM
Please help me.
The car won't start.


Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: _nameless on August 09, 2025, 12:55:08 PM
Spoonnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn


Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: Gizmo06 on August 09, 2025, 10:35:53 PM
Can I do it with this tool (https://www.amazon.fr/DollaTek-Programmeur-universel-adaptateurs-Remplacement/dp/B0CXSYRL4L/ref=sr_1_2?crid=1OU07PYUNFY2H&dib=eyJ2IjoiMSJ9.7dCK1Opvo9n92WUnuTxF1KOWawiFfumUzJ-4v521pjS8t-VN9E2zJVTMFUr2MBQgh7EBBdxhSTbsTDnoclsOxpxgkONmf3CPu9Spaq1Th77B_cRlI6Gm9fh4DOL7v_9rx3QhS-RcupFO_NQuyiARwHZXm-PikK3ZBnq5qzSXE4u8zg-pxk8ju8KJFtwki5tQkOBSZ3zTmouRke5aOTDVDw.ympAKGFUMro7igO9hyIq98vq-ipgNrSRc9WABFbePDI&dib_tag=se&keywords=Mini+Pro+TL866&qid=1748587791&sprefix=mini+pro+tl866%2Caps%2C307&sr=8-2) ?


Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: Gizmo06 on August 14, 2025, 11:09:41 AM
Hello, I forgot to specify that in addition to the MSA15.5-7.2 ECU, I have the IMMO box under the steering wheel, reference 4A0 953 234 F

Is IMMO OFF done on the ECU or on the IMMO box?


Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: aef on August 15, 2025, 03:46:44 AM
you have different roadblocks to overcome
- hot air soldering station
- soldering iron
- eeprom reader
- correct eeprom adapter
- maybe new eeprom

better buy an emulator für 20 bucks and wire it in instead of the immo box


Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: Gizmo06 on August 15, 2025, 01:06:18 PM
I have all the equipment (I just hope the eprom adapter is the right one).
I just need the procedure for this model.


Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: Gizmo06 on August 17, 2025, 02:56:42 AM
Hello,
My son is at home, so I've looked at his ECU.
This is the chip for IMMO :
(https://i.postimg.cc/9DL7bQrV/Whats-App-Image-2025-08-17-11-40-22-8b86045c.jpg) (https://postimg.cc/9DL7bQrV)

Is it possible to read it with this ?
(https://i.postimg.cc/9DL7bQrV/Whats-App-Image-2025-08-17-11-40-22-8b86045c.jpg) (https://postimg.cc/9DL7bQrV)

Or do I have to use one of these adaptaters (wich one) ?
(https://i.postimg.cc/PC0DprJq/Whats-App-Image-2025-08-17-11-40-22-6a7f589b.jpg) (https://postimg.cc/PC0DprJq)

I have look at Xgpro v12.96 to see the models available, there is a lot and I don't know wich one I have to take ?
(https://i.postimg.cc/rzhKRFYL/liste-24c02.png) (https://postimg.cc/rzhKRFYL)



Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: aef on August 18, 2025, 03:25:08 AM
Try Microchip Memory and 24C02A


Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: Gizmo06 on August 18, 2025, 01:35:48 PM
Thanks for your reply.

I unsoldered the chip, put it in the SOP8/16 adapter, and selected Microchip Memory and 24C02A, but I still get an error.
I checked the chip's position on the adapter : OK.

I'm afraid my XGecu T48 enclosure is defective.  ???


Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: Gizmo06 on August 18, 2025, 01:46:20 PM
(https://i.postimg.cc/ctd9Wt4z/Whats-App-Image-2025-08-18-22-31-23-85305444.jpg) (https://postimg.cc/ctd9Wt4z)

(https://i.postimg.cc/7Gn9KPMn/Capture-microchip-24c02a.jpg) (https://postimg.cc/7Gn9KPMn)


Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: aef on August 19, 2025, 01:49:15 AM
The board is so laggy lately i cant upload images.

are you sure the adapter is in the correct orientation?

https://postimg.cc/DWpQLPZp

https://postimg.cc/zLQWVDt9


Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: Gizmo06 on August 21, 2025, 01:09:45 PM
I can't put it the other way around, otherwise the adapter is hindered by the locking lever

(https://i.postimg.cc/148xmR9v/Whats-App-Image-2025-08-21-22-05-42-1a26b73b.jpg) (https://postimg.cc/148xmR9v)


Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: Gizmo06 on August 21, 2025, 02:01:22 PM
I just retested with a new chip, and it still doesn't work.
I think the programmer is defective; I'm returning it to the seller.

Do you have a model you could recommend for reading the 24C02, 27C1024, and m28F102 EPROMs?


Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: aef on August 22, 2025, 12:48:37 AM
Have you checked continuity from the pin through the adapter into the programmer?

Can you try it with the minipro software? Your programmer look like a never version or clone of the minipro.

In your screenshot of the software the lever is down right while your chip/adapter is on top.

As you can see my programmer does have the IC orientation and pin1 (dot) on the case. maybe you are just on the wrong side of your programmer?

edit: i just looked at tl866-3g which is shown in your software screenshot and i think you are working on the wrong side of the programmer!


Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: Gizmo06 on August 22, 2025, 01:47:16 PM
Have you checked continuity from the pin through the adapter into the programmer?
Yes I have done it with both adapters, and it's OK


edit: i just looked at tl866-3g which is shown in your software screenshot and i think you are working on the wrong side of the programmer!

OMG!  I'm embarrassed !!
I've been looking for what's wrong for a long time.
I've posted on several forums, but no one has seen this error!!
I'm glad you looked at this image.
Thank you very much 


Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: Gizmo06 on August 26, 2025, 04:55:13 AM
Hello everyone,
I just received my T48 and I managed to read the 24C02 chip (thank you aef).
Is it possible to modify the dump with Xgpro v12.96?


Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: aef on August 27, 2025, 01:15:18 AM
what do you mean by you received the t48?

thought you already had it.

check out my picture from the previous post with the changed 60 directly in the minipro software.
you can use the software or some other hexeditor

"This method are usually called 60 trick.
You need to find in hex all 33,F3 and 73 values and replace them to 60 in hex"


Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: Gizmo06 on August 27, 2025, 03:50:18 AM
what do you mean by you received the t48?

thought you already had it.

I sent a message to the seller with a screenshot when I did a self-test, he told me that there was a problem with the result.
So I sent my box back and got another one.

Someone made me an IMMO OFF, but I don't understand because the replaced values ​​are 00, 24, 33 and 67 which does not match anything I read elsewhere. The IMMO OFF was done with a program.
Is this immo off well done?
(https://i.postimg.cc/4nZ6PKsW/Sans-titre.jpg) (https://postimg.cc/4nZ6PKsW)

I don't want to stupidly write this dump, I want to understand what I'm doing and why, hence my questions.

Once I've written the dump to the chip and reinstalled the ECU in the car, do I need to disconnect the IMMO box, and cut wire 59(on ECU ?) ?
I read that I need to connect the KLine and WLine wires?


Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: aef on August 27, 2025, 04:46:03 AM
would start with the 33 to 60 method, nothing more.
you can write the chip several times and you can check the immo status with vcds on the bench

there is no clear, explainable and understandable solution. on me7.5 its 2 values + checksum. on msa15 its the sledgehammer approach...

https://de.scribd.com/document/461060585/Bosch-MSA15-immo-removal-Chiptuning


its correct, you have to uninstall the immo box and connect W to K to get communication via obd2 slot back to working


Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: Gizmo06 on August 27, 2025, 05:11:29 AM
Thank you very much aef for your help 


Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: _nameless on August 28, 2025, 10:51:27 AM
 ;)


Title: Re: IMMO OFF on MSA 15.5-7.2
Post by: Gizmo06 on September 08, 2025, 10:40:21 PM
Hello,

The last time my son came home (August 20th), I took apart the IMMO box, re-soldered the connector, checked all the wires and the coil, and put everything back together.
Since then, he hasn't had any more problems with his IMMO.

I haven't seen him since I reprogrammed the chip, but I don't think I'll replace it since it works...
What do you think about?