no CHECK ENGINE glow

[buletz]

good day , dear sirs !

i'm from Russia, my Mitsu Galant E55A 4g63 (2.0 l) 1993
doesn't start .

when I turn the ignition key , the CHECK ENGINE doesn't glow.
I've checked with volt-meter the power on the ECU, there is +0.05V instead of +12V.
When I disconnect the connector from ECU, +12V is OK.

I understand so , that trouble is in ECU.

When I've extracted the board from the case of ECU, I've seen that one of M5269L is fried. But as I know, this M5269L (low saturation output driver) controls the ISC (the idle step curcuit), and i wonder , why should it influence the glowing of CHECK ENGINE...
May be not only M5269L is damaged but something else ?

I would be very appreciate to all of you for any tips on how to repair my ECU...

Is there any analogues of these chips (M5269L) ? i ask because M5269L is hard to buy in Moscow.

 

[92awddsm]

good day , dear sirs !

i'm from Russia, my Mitsu Galant E55A 4g63 (2.0 l) 1993
doesn't start .

when I turn the ignition key , the CHECK ENGINE doesn't glow.
I've checked with volt-meter the power on the ECU, there is +0.05V instead of +12V.
When I disconnect the connector from ECU, +12V is OK.

I understand so , that trouble is in ECU.

When I've extracted the board from the case of ECU, I've seen that one of M5269L is fried. But as I know, this M5269L (low saturation output driver) controls the ISC (the idle step curcuit), and i wonder , why should it influence the glowing of CHECK ENGINE...
May be not only M5269L is damaged but something else ?

I would be very appreciate to all of you for any tips on how to repair my ECU...

Is there any analogues of these chips (M5269L) ? i ask because M5269L is hard to buy in Moscow.

The best advice I could give you is to contact dsmtuners member steve or visit his website
http://simon.chi.il.us/~steve/Auto/DSM/ECURepair.html

 

[buletz]

may be I should post my question in other section of forum?
help plz

 

[buletz]

i found out what was the problem :
bad contact on +12V on ECI fuse.
that's why when I plugged in the computer (ECU) - the contact broke and there was no power on ECU .

but before I found out this thing I had a time to replace my old ECU and spent on it 150$.