Key Relearn I went through the whole process still not working?

Tiny
AMYLOU36
  • MEMBER
  • 2006 CADILLAC SRX
  • 4.6L
  • V8
  • 2WD
  • AUTOMATIC
  • 177,000 MILES
I replaced the ECM and was given instructions on how to do the key relearn. The key was already stuck in the ignition so after the new ECM was installed, I turned the key to the on position and waited the 10 minutes for the light to go off, but the light never went off. I waited for about 20 minutes and nothing happened, so I turned the key to off and waited 5 seconds and turned it back to the on position and again the light didn't go off. I went through the whole process but the relearn didn't work. Now the fuel pump doesn't come on when I turn the key. I thought it could've been the battery at first but now I don't know what it is. Is there a way to start over? Or does anyone know how I can fix this?
Sunday, December 29th, 2024 AT 7:04 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 49,970 POSTS
I would make sure the remote has a new battery, also can I ask if the ECM has pre-programmed? If not, this will be the problem. Once the ECM is ready this is how to relearn the keys in the images below. You can get a preprogrammed unit by searching Google or Ebay. Check out the images (below). Please let us know what happens.
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Monday, December 30th, 2024 AT 11:05 AM
Tiny
AMYLOU36
  • MEMBER
  • 2 POSTS
Yes, the unit was programmed to my VIN.
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Monday, December 30th, 2024 AT 1:34 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 49,970 POSTS
Okay, I would use the key relearn procedure in the images above. Let me know how it goes.
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Tuesday, December 31st, 2024 AT 11:22 AM

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