ECM Keeps Shorting

1986 FORD F-150
100,000 MILES • 5.0L • V8 • RWD • AUTOMATIC
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SALEENS331
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  • 13 POSTS
My ECM keeps shorting. Opening it up, I found that the capacitor at slot D2 on the green circuit board is shorted. I would like to know how I can figure out what shorted wire, etc. is causing this?
Mar 5, 2016 at 8:51 AM
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WRENCHTECH
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The only components in the computer that I am aware of that can be damaged by external components are the Quad drivers that are responsible for controlling external actuators.
Mar 5, 2016 at 9:49 PM
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SALEENS331
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Sorry, I meant a jumper. Not sure how it happened.
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Mar 5, 2016 at 9:54 PM
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WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
We don't repair computers. We replace them.
Mar 5, 2016 at 9:57 PM
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SALEENS331
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How do you think this can be happening? It has happened to both or the replacement ecm's, but the oe computer has completely different symptoms, and never does what these two do.
Mar 5, 2016 at 10:00 PM
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