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No crank, no start, no dash lights after changing immobilizer

Tiny
BUCK PHILLIPS
  • MEMBER
  • 2000 LINCOLN LS
  • 3.9L
  • V8
  • 2WD
  • AUTOMATIC
  • 219,000 MILES
I replaced the ignition switch in the car broke the ring around the key immobilizer put the original mother board out of the original key immobilizer in a different immobilizer car will not start. Do I need to get new keys made and have them programmed?
Plus when you turn the key no crank no start and no dash lights.
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Monday, December 2nd, 2019 AT 5:17 PM

4 Replies

Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello,

The instrument cluster and the Power-train Control Module [PCM] or "computer" are a matched set in these cars and cannot be interchanged. In the diagrams down below I have included a description of how the Passive Anti Theft System [PATS] works on your vehicle. Please go through this guide and get back to us with how everything works out.

Thanks,
Alex
2CarPros
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Tuesday, December 3rd, 2019 AT 5:06 AM
Tiny
AL514
  • MECHANIC
  • 4,795 POSTS
Hello, most shops these days have scan tools capable of reprogramming the immobilizer unit. Most likely that's the issue if the car ran okay before the change over. The security systems can be tricky when changing parts around. The ECM needs to programmed to the immobilizer.
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Tuesday, December 3rd, 2019 AT 5:07 AM
Tiny
BUCK PHILLIPS
  • MEMBER
  • 2 POSTS
Okay, thank you.
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Tuesday, December 3rd, 2019 AT 5:16 AM
Tiny
AL514
  • MECHANIC
  • 4,795 POSTS
No problem. Any other issues, we're here.
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Wednesday, December 4th, 2019 AT 5:22 AM

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