1997 Cadillac SAS won't start due to security system

1997 CADILLAC STS
100,000 MILES • 5.7L • V8 • FWD • AUTOMATIC
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JUANM3
  • MEMBER
  • 1 POST
Theft system won't allow car to start I've tried all suggestions except changing cylinder and key. I've read on this site something about a resistor that you can install to bypass security system. . Couldn't find any links for wiring diagram or what resistor to purchase at Radio Shack. If anyone could please send me information it would be a great blessing . juanm31972@gmail.com. thank you
Jul 21, 2014 at 2:11 PM
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FREEMBA
  • ✓ASE Certified Mechanic
  • 1,152 POSTS
  • ASE Certified Mechanic
What are the events which led up to the anti-theft system keeping you car from starting?
Why are you so sure that it is the anti-theft system?

If the starter motor cranks over then the fault is not in the PASS-KEY III system.

Check the 15 amp IGN SW fuse in the rear junction box.
Check the 10 amp IP fuse and 30 amp START circuit breaker in the underhood junction block.

What procedure did you use to re-program your system?
Jul 21, 2014 at 6:17 PM
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SEXXY CADILLAC
  • MEMBER
  • 2 POSTS
Help just replaced a starter car started fine then I turned off .. now car turns but don't start theft system problem shows up on message board and the transmission board flashing
Aug 8, 2014 at 7:50 PM
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