NefMoto > Technical > Cluster and Immobilizer (Moderator: ddillenger) > Audi A4 B8 MED17.5 -> MED17.1 Immo question
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Author Topic: Audi A4 B8 MED17.5 -> MED17.1 Immo question  (Read 3146 times)
quattro85
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« Reply #15 on: April 16, 2024, 08:49:44 AM »
Quote from: quattro85 on April 14, 2024, 09:31:12 AM

Both files should be checksum correct.

I found out that two different Immo off tools, changed two different bytes in Eepr file (first one change byte in 0x0A in each block, and second one changed byte at 0x20 in each block - I doubt both methods works)

Can you confirm if they are good enough?

Original files - few posts above


It seems checksums are not correct - at least for the eeprom, so I get internal eeprom error - no start, no coding, nothing! Sad
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quattro85
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« Reply #16 on: April 16, 2024, 12:00:24 PM »
So tried second immo off tool and it is better - Now the car starts and could be recoded for manual transmission.

However it is again like before - 5523 - Engine Start Blocked by Immobilizer in ECU, and also error in 05-Acc/Start Auth. for Immo data not adapted in ECU.
Also SAFE over daily mileage counter on dashboard.
As I understand from gt-innovation post above - I should "kill" error class for the error in ECU, how I can block CAN message to dashboard, not to sure I can do this.

Also it is not possible to read ECU by Kess V2 that my friend have.
Right now I'm thinking - is it possible to read/write ECU trough OBD if Immo is defeated, not adapted?
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prj
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« Reply #17 on: April 20, 2024, 03:02:37 AM »
Quote from: fastboatster on April 15, 2024, 10:59:36 PM
is it available via Vehical? I saw that it lists immo offs for Simos 18 and 12, no mention of Simos 8.x
It's not, I never put it online. I probably could though.
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gt-innovation
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« Reply #18 on: April 20, 2024, 04:31:46 AM »
Quote from: quattro85 on April 16, 2024, 12:00:24 PM
So tried second immo off tool and it is better - Now the car starts and could be recoded for manual transmission.

However it is again like before - 5523 - Engine Start Blocked by Immobilizer in ECU, and also error in 05-Acc/Start Auth. for Immo data not adapted in ECU.
Also SAFE over daily mileage counter on dashboard.
As I understand from gt-innovation post above - I should "kill" error class for the error in ECU, how I can block CAN message to dashboard, not to sure I can do this.

Also it is not possible to read ECU by Kess V2 that my friend have.
Right now I'm thinking - is it possible to read/write ECU trough OBD if Immo is defeated, not adapted?



No, you do not kill the DTC. You need to tell the siaError function that there is no error.But as i said before and as prj indicated there is also alternative methods but you just need to study the code a bit more. I stopped when it worked for my needs.
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fastboatster
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« Reply #19 on: April 22, 2024, 05:31:21 PM »
Quote from: prj on April 20, 2024, 03:02:37 AM
It's not, I never put it online. I probably could though.
yeah, why wouldn't you, that would be great if it was available on VehiCAL. it would definitely complement logging functionality.
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