IMMO3 ECU swap

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mogren82

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	IMMO3 ECU swap « on: March 27, 2012, 08:46:31 AM »

Hi guys,

I will swap the ECU in my (Euro) A4 -03 1.8Tq (BFB engine 120kw) to a ECU from a BEX engine (140kw), both ME7.5.
I have been using a USB-UPA kit to read the data in the ST95040 immo. chips, but I am a little bit unsure what to edit to make the ECU work?

ST95040 from my ECU:

Uploaded with ImageShack.us

ST95040 from new ECU:

Uploaded with ImageShack.us

Tried to copy all data in ST95040 from current ECU to the new but it generated a fault code:

--------------------------------------------------------------------------------

Address 01: Engine Labels: Redir Fail!
Control Module Part Number: 8E0 909 518 AS HW: 8E0 909 018 A
Component and/or Version: 1.8L R4/5VT G 0003
Software Coding: 0011701
Work Shop Code: WSC 63351 000 00000
VCID: 810D0137A199
1 Fault Found:

17978 - Engine Start Blocked by Immobilizer
P1570 - 001 - Upper Limit Exceeded

Readiness: 0110 1101

--------------------------------------------------------------------------------

Any ideas or help would be very appreciated!

I apologize for my bad English... ;-)

//Andreas


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A4 B6 1.8tq -03

bazaa

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	Re: IMMO3 ECU swap « Reply #1 on: March 27, 2012, 09:36:59 AM »

you read both immo's from the ecu's so you could of used vcds to login, to replacement ecu and change it to your car as here.

http://wiki.ross-tech.com/wiki/index.php/Immobilizer_III_ECU_Swapping

your original code is 05406
Bex ecu code was 01379

if you try to log in to the bex ecu you will probably find it will be your original ecu code ,log in with vcds and go through as if renewing your ecu and it will correct the checksum.
Hope this helps Bazaa


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mogren82

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	Re: IMMO3 ECU swap « Reply #2 on: March 27, 2012, 12:38:14 PM »

Thanks for the info, will give it a try tomorrow

Edit: Which bytes contains the pin code?


« Last Edit: March 27, 2012, 12:41:46 PM by mogren82 »	Logged

A4 B6 1.8tq -03

bazaa

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	Re: IMMO3 ECU swap « Reply #3 on: March 27, 2012, 01:20:05 PM »

They are at 0x32 and 0x33, you need to swap hex bytes, so format is 1E 15 on original ecu change around to 151E , convert to decimal then add 0 to front


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mogren82

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	Re: IMMO3 ECU swap « Reply #4 on: March 27, 2012, 01:23:31 PM »

Thanks, may be useful to know for another time!


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professor

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	Re: IMMO3 ECU swap « Reply #5 on: March 27, 2012, 01:33:08 PM »

bazaa have some karma


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"Those 1.8T 20V machines are really tough" ©

bazaa

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	Re: IMMO3 ECU swap « Reply #6 on: March 27, 2012, 01:39:41 PM »

@professor thanks .

also ArgDub give info for immo removal in this post if you ever need it.

http://nefariousmotorsports.com/forum/index.php?topic=1629.msg16081#msg16081

Bazaa


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mogren82

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	Re: IMMO3 ECU swap « Reply #7 on: March 28, 2012, 10:08:02 AM »

Just tried changing ECU according to the guide on rosstech, but have problems with the old ecu pin code is not accepted when doing the adaption in channel 50, 32000 appears as the test result. What to do?


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bazaa

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	Re: IMMO3 ECU swap « Reply #8 on: March 28, 2012, 12:25:16 PM »

how are you reading the chip did you desolder or use something like pomona clip?
might be worth reading the 95040 again and compairing with your original just to check for any corruption ,then try reflashing it again.


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mogren82

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	Re: IMMO3 ECU swap « Reply #9 on: March 28, 2012, 01:24:37 PM »

I did resolder and read the chip in the USB-UPA ebay-kit.

However i did give the immo defeat a try and now the car is running.

Thanks for the help!!


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Racingbeat

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	Re: IMMO3 ECU swap « Reply #10 on: August 13, 2012, 11:24:18 PM »

Ive found this post very useful, thank you Bazaa Wink


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