How can i test my ECM? - Maintenance and Repair Forum - j-body.org

How can i test my ECM? - Maintenance and Repair Forum

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How can i test my ECM?

Tuesday, January 08, 2008 11:09 AM

Justin B

Just wondering what wires to test to ensure my ECM is sending a message to my module???

thanks, justin.

Re: How can i test my ECM?

Tuesday, January 08, 2008 1:36 PM

Shifted

You can't test them like that, you'd need a logic analyzer to view it. The levels sent down the line are messages so you won't get a particular voltage on the line.

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Re: How can i test my ECM?

Tuesday, January 08, 2008 4:56 PM

Justin B

Ok, now i ran a snap-on scan tool and get a ECM/PCM temperture code.. looks like its pointing the culprit for no spark??? ( i hope )

anyone else have any expierence with this?

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