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W210 P1056 error in EIS

1
I try to fix Merc W210 that will not start. After key turned it will crank for 1/4 turn and that's all. The car will start when I push it.
After diagnosis there is P1056 error in EIS. It means CAN line is broken, checked all the lines and are fine, the problem is 99% with EIS - can someone confirm this? Have anyone been fighting with this error? I can order EIS from junkyard but then what is the easiest way to do it (it has 2 MCUs?)- I have VVDI MBtool and Xprog.
Thanks given by:
2
VVDI MB has nothing to do.

Xprog can read and write.

Simply Swap MCU's the outer and the inner one BUT before all these, plug in the 2nd hand EIS and see if the fault is out or not.

Best regards.
[Image: mhhsig.gif]
Thanks given by: KriyenKPp , diablotic , daxxer
3
I do not have key for second hand EIS - cannot turn ignition on. Is communication with EIS possible without ignition on?
Thanks given by:
4
(05-30-2018, 02:25 PM)diablotic Wrote: I do not have key for second hand EIS - cannot turn ignition on. Is communication with EIS possible without ignition on?

Sure Tup

Best regards.
[Image: mhhsig.gif]
Thanks given by: daxxer
5
there two ways to do that.
1.swap the mcus from old to the new.
2. read one mcu from the new one generate key, make esl and engine ecu virgin and adapt them with das
Thanks given by: webmaster , daxxer

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