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+---- Thread: MAGNETI MARELLI IAW 1AP.41 (/showthread.php?tid=44986)
MAGNETI MARELLI IAW 1AP.41 - allpro - 13-01-2019
Hi guys,
someone, has the complete scheme of this ECU? or diagram for a repair? ( IAW 1AP.41 )
I have a original DIAG 2000, an old ECU, on a test bench, but the result is: "THE CALCULATOR DID NOT RESPOND"
I would like to understand, if I connected it right for the diagnosis,
if instead the control unit was damaged, it would serve a scheme to test the power supplies on the tracks.
I connected
obd pin IAW 1AP.41 pin PSU 12v
1 13 & 35 +12
4 36 & 54 NEGATIVE
7 31 ( K line )
12 12 ( L line )
16 +12
is it necessary to connect the transponder for diagnosis?
or does it only serve to start the engine? pin 27 & 48 ??
thanks in advance for this adventure
RE: MAGNETI MARELLI IAW 1AP.41 - zmann - 14-01-2019
Try L line on OBD side on pin 15
RE: MAGNETI MARELLI IAW 1AP.41 - allpro - 14-01-2019
(14-01-2019, 00:53 AM)zmann Wrote: Try L line on OBD side on pin 15
thank you
I also tried it like this but
the computer does not respond..
other ideas?
RE: MAGNETI MARELLI IAW 1AP.41 - pankar - 14-01-2019
Hi, you can make diagnose after immo off or on car and immo not active.
RE: MAGNETI MARELLI IAW 1AP.41 - allpro - 15-01-2019
I almost imagined, can I do immo off without reprogramming? I do not have eprom sockets and programmers available, I want to try tweezer method? where can I find the guide?
RE: MAGNETI MARELLI IAW 1AP.41 - pankar - 15-01-2019
The best method is immo off from tms. With the tweezer method, first make backup the 28f512.
RE: MAGNETI MARELLI IAW 1AP.41 - allpro - 15-01-2019
(15-01-2019, 19:08 PM)pankar Wrote: The best method is immo off from tms. With the tweezer method, first make backup the 28f512.
I did not backup, because I do not have a plinth and a programmer ... I did tweezer, but now the diagnosis light remains fixed, even turning off the pin1 obd contact. having said this, I just wanted to do a test on this unit, to try the download with Diag 2000 of actia. (I think I have everything I need) is a test to see if the Diag works, before damaging the ECU on the car. the problem is that I do not know if the control unit on the desk is faulty. Thanks again. every help and suggestion is welcome. when the test is finished, I can put all the photos and procedures, accessories, and tools used.
RE: MAGNETI MARELLI IAW 1AP.41 - PACEVE - 03-05-2022
Use ECU virgin file, all is done