After replacing ECM green security light turns on and car shuts off

1998 HONDA ACCORD
150,000 MILES • V6 • AUTOMATIC
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MICAMOUSE
  • MEMBER
  • 1 POST
I recently replaced the ignition and ECM. The car starts and runs, but doesn't get far before a green security light shaped like a key shows up and the car shuts off. Is there a way to pair my ignition and ECM without going to a dealership?
Feb 2, 2020 at 7:21 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Here is a general reset for the ECM:

Turn the ignition switch off, and remove the No.13 clock backupfuse (7.5 A) (A) from the passenger's under-dash fuse/relay box (B) for 10 seconds. (see picture 1)

I have to be honest, since you replaced both, I suspect it will have to be returned to a dealer or someone that has the programming capabilities. However, try the ECM reset to see if that helps first.

Let me know what you find.

Joe
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Feb 2, 2020 at 11:57 AM
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