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How do you identify and isolate a bad component in the ignition circuitry that caused the ECM to go bad before you install a replacement ECM?
We have already checked the rotor and probed the ignition coil and confirmed there is power there. We think we isolated the problem to the ECM. There is no chart of the connector with terminals or resistance indicated in the instructions. That is what I was asking about. The instructions say that you should use an ohm meter to identify which components might have caused the overcurrent that damaged the ECM, and repair or replace them, or else it could fry the replacement ECM when it is installed. I just need to know which terminals on the ECM connector to check to each other or to ground to identify the bad component and what the normal resistance range to expect if the component is good, or what to expect if the component has shorted, or is open. Thanks for your assistance.
ok, I will attach the connector view for you. Roy
Thanks, XXXXX XXXXX what I need. However, the disclaimer on the chart says don't direct probe the 60 pin connector, use a "Breakout Box". What is this, and where do I get one?
2003 Jetta left rear window blue plastic part of the