No ECU response - Alfa 156

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NejcZ
Posts: 2
Joined: 08 Jul 2013, 15:38
Location: Slovenia

No ECU response - Alfa 156

Post by NejcZ » 17 Jul 2013, 19:06

Hello everyone,
i'm having hard time figuring out why my Alfa 156 JTD won't connect to Engine ECU. I definetly have correct drivers and all interfaces work ok (tested on other cars).
I guess the problem is i'm not getting signal from ECU. Pin 7 in OBD connector is connected to pin 48 in ECU, but I don't get any voltage on pin 7. Should there be any?
What else can I check, anyone had similar problems connecting to their car's and foud a solution?

Meanwhile, other computers connect fine (airbag, climate...).
So my question is, what can I check to see if some other connection is broken? Could there be a problem with ECU itself?

Thanks!

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