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Go Back   GSM-Forum > Non GSM/Mobile Related Forums > CAR Electronics > ECU & IMMO


ECU & IMMO Diagnostic, Immobilizer, Chip Tuning

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Old 06-30-2019, 18:58   #1 (permalink)
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VW T4 2,5 TDI ECU MSA12 change.


Hello,
i have to change ECU from T4 2.5 , because the orginal ist completly cracked

I want to adapt another used ECU with vcds, but it do not accept a adaptation to my T4.

I have the immo pin from my T4 but i think i need the pincode from the new used to reset.

ECU MSA12 : 074906021F 0281001469/470

What can i do now ?

Reset or perhaps better IMMO OFF

I have read both B58323 as 93c46, can someone calculate

the immo pin or immo off ?



Chip1:
https://www.file-upload.net/download...chip1.rar.html

Chip2:
https://www.file-upload.net/download...chip2.rar.html

Picture from Mainbord Eproms position
https://ibb.co/7jsW8zx
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Old 06-30-2019, 19:07   #2 (permalink)
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Quote:
Originally Posted by testosteron View Post
Hello,
i have to change ECU from T4 2.5 , because the orginal ist completly cracked

I want to adapt another used ECU with vcds, but it do not accept a adaptation to my T4.

I have the immo pin from my T4 but i think i need the pincode from the new used to reset.

ECU MSA12 : 074906021F 0281001469/470

What can i do now ?

Reset or perhaps better IMMO OFF

I have read both B58323 as 93c46, can someone calculate

the immo pin or immo off ?



Chip1:
https://www.file-upload.net/download...chip1.rar.html

Chip2:
https://www.file-upload.net/download...chip2.rar.html

Picture from Mainbord Eproms position
https://ibb.co/7jsW8zx
If it's the same numbers off the ecu then just swap the eeproms

wbr
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Old 06-30-2019, 20:19   #3 (permalink)
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Unfortunately, this is not the same device

orginal : 074 906 021 L Aluminiun case

new : 074 906 021 F Plastic case

another eeproms
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Old 06-30-2019, 21:37   #4 (permalink)
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Quote:
Originally Posted by testosteron View Post
Unfortunately, this is not the same device

orginal : 074 906 021 L Aluminiun case

new : 074 906 021 F Plastic case

another eeproms
Try swapping the chips, they should be ok

wbr
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