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International Automotive Technicians Network
Re: How do you prove an ECU is faulty?
Posted to Technical Discussion Forum on 7/28/1997 2 Replies

Henry,

I agree that if I could figure out why I have 20 volts I would be able to fix this car. In fact when I first encountered it I thought my DVOM had malfunctioned. But now I have a DSO and there is no mistake I get 20 volts out of the ECU.

The circuit ... Login to read more.

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