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ECM Keeps Shorting

Tiny
SALEENS331
  • MEMBER
  • 1986 FORD F-150
  • 5.0L
  • V8
  • RWD
  • AUTOMATIC
  • 100,000 MILES
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?
Saturday, March 5th, 2016 AT 4:51 PM

4 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
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.
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Sunday, March 6th, 2016 AT 5:49 AM
Tiny
SALEENS331
  • MEMBER
  • 13 POSTS
Sorry, I meant a jumper. Not sure how it happened.
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Sunday, March 6th, 2016 AT 5:54 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
We don't repair computers. We replace them.
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Sunday, March 6th, 2016 AT 5:57 AM
Tiny
SALEENS331
  • MEMBER
  • 13 POSTS
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.
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Sunday, March 6th, 2016 AT 6:00 AM

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