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noob immob questions sorry me7
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Topic: noob immob questions sorry me7 (Read 3778 times)
dik-van-dub
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noob immob questions sorry me7
« on: March 16, 2015, 05:38:52 PM »
i will appologise now just trying to get my head round immob defeats on vag me7 ecu's
i am using a clip on the epprom chip and can and write to it thats easy enough
my problem is the stage inbetween, i know you modifify 12 and 22 from 01 to 02
now i believe the checksum needs to be modified aswell (the last 4 digits of lines 10 and 20), how do i go about calculating these
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k0mpresd
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Re: noob immob questions sorry me7
« Reply #1 on: March 16, 2015, 05:44:35 PM »
ffff - sum of octets.
fffe - sum of octets.
line is increased by one, so naturally chksum is lowered by 1.
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dik-van-dub
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Re: noob immob questions sorry me7
« Reply #2 on: March 16, 2015, 05:54:40 PM »
so for eg i have
e7fc
e6fc
i should replace these with
e7fb
e6fb
is this correct
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ddillenger
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Re: noob immob questions sorry me7
« Reply #3 on: March 16, 2015, 06:07:05 PM »
E7 FC
E6 FC
Becomes
E6 FC
E5 FC
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
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dik-van-dub
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Re: noob immob questions sorry me7
« Reply #4 on: March 17, 2015, 11:14:34 AM »
thanks for that, hope you dont mind but i will post my one when i do it to make sure its correct
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