How do you no when you need to replace the ECM?

Tiny
ANONYMOUS
  • 2000 MERCURY VILLAGER
  • 130,000 MILES

How do you no when you need to replace the ECM?

Sunday, December 23rd, 2012 AT 6:25 PM

1 Reply

Tiny
ASEMASTER6371
  • EXPERT
  • 25,554 POSTS

During the diag process, it may fail to control the needed outputs? Never assume this piece is bad till confirmed by someone who knows how to check. It fails for a reason ind if it is not found, then the new one will most likely fail as well.

Roy

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Sunday, December 23rd, 2012 AT 6:29 PM

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