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Joe
Joe, Marine Mechanic
Category: Boat
Satisfied Customers: 7136
Experience:  ASE, electronics, Marine mechanical and electronics, pwc, wiring, all around repair tech,
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I have a 3412e engine. I am getting a j1587 ata data

Customer Question

I have a 3412e engine. I am getting a j1587 ata data commloss and a 1939 data comm loss. my screen is reading no data not even voltage. have traced wires and found one broke spliced it but still nothing. what would you recommend I do next
Submitted: 1 year ago.
Category: Boat
Expert:  Joe replied 1 year ago.

Hello,

Thank you for allowing me to assist you, my name is Joe and I will be happy to assist you with your concern today.

So long as every wire in the harnesses have been checked and you are 100% sure they are not the problem and there are no poor/loose connections such as at a harness pin being pushed in, too far open, corrosion, etc, then I would lean towards the ecm if the problem is lack of communication and engine not running as a result. This one may help to know if the problem is simply loss of communication such as to the gauges or loss of communication with ecm and engine not running as a result, knowing the full extent of the symptoms.

Thank you!
- Joe

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