Problem with BMW 520D EDC17CP02

[Sagest27]

Hi,

I have a problem with engine ecu.
Car is a BMW 520D and ECU is a Bosch 0281015043 EDC17CP02
Car don't start and with a diagnostic the error is:
"Converter DC/DC breakdown, capacitor buffer 1 don't load"
Please can somebody to tell me where the converter DC/DC is found on the circuit of the ecu?
Thanks

[mislav88]

post hi res pictures of both sides of the board and i am sure someone will be able to tell you where is it

[Sagest27]

Hi,

thanks.
these are the photos of the ecu

[Unichip]

Hi,

I had similar problem with 730d.
the problem was: p1110780.jpg left upper corner two black transistor the middle leg cut.
Regards
Laszlo