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Offline asim  
#1 Posted : 23 December 2018 01:45:06(UTC)
asim


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Working on a Mini R56 with dead DME. Want to replace DME with other DME. Read ISN from CAS successfully. When I try to read of write ISN to donor-DME at approximately 4%
ah_fail_isn.jpg (72kb) downloaded 27 time(s).

the engine-fault-light turns off and the DME can't be reached anymore in anyway; not by diagnostic scanning etc. I have to remove the DME , wait for approximately 15-30 minutes, reconnect the DME and than the engine-fault-light is on again (ignition on). and the DME is accessible again. If I leave it that way for hours it stays on. As soon as I try to read or write the DME it becomes inaccessable at around 4% of the procedure.

Any ideas how to adapt the donor-dme to the car?
Offline BMWZG  
#2 Posted : 23 December 2018 15:32:56(UTC)
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Read ISN rom DME and write to CAS.
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Offline asim  
#3 Posted : 23 December 2018 17:25:38(UTC)
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I cannot read ISN from the donor ECU. If behaves like stated in my start post (connections is lost at about 4%). This goes for READING the ISN from the donor dme as for WRITING the ISn to the donor dme.
Offline useyourbrains  
#4 Posted : 23 December 2018 19:53:22(UTC)
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Read isn in boot mode. always works for me.
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Offline asim  
#5 Posted : 23 December 2018 21:50:11(UTC)
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Thank you, I will try that after Christmas and report back.
Offline Natem3  
#6 Posted : 26 December 2018 07:11:19(UTC)
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What DME do you pick to read MED172 in ISN boot mode? I did not see it in the list? Can you reset working hours in it also?
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