If my scanner has Mercedes protocol. If have it hooked up to the 38 pin will I be able to pull codes or determined whether the ecm needs to be repaired.
I do know of a decent Indy but he's in the next town. I will take the car to him if I can't make my scanner work. Although my car runs not so good at the moment it should be able to make the drive.
Walk me through the process. My take. Take it in and identify the codes. Take the car home and replace what was identified by the scanner. Return run another scan and clear the codes. Am I close to what to expect.
I'm still going to check the signal voltage and grounds and see if that indicates an ecm issue.
Roddy

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