Pass key fault

Tiny
WGONZO64
  • MEMBER
  • 1994 CHEVROLET CAPRICE
  • V8
  • 2WD
  • AUTOMATIC
  • 190,000 MILES
The appeared 2 xs one my instrument panel once when it appeared that I had a dead battery( when I turn the key everything when dead but after a few try's it started right up) the second time was warmeing the car up and when back to shut it off and as it was running pass key fault appeared. What does this mean?
Monday, February 1st, 2010 AT 9:03 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
The pass key system is the theft system that your vehicle uses to prevent someone from stealing the vehicle.

The fact that this is coming on means when you insert the key it is not recognizing the key installed in the ignition.

However, the fact that this happened around a battery issue and has not happened since then I would not worry about it.

More than likely this was just an erroneous issue that did not reoccur.

https://www.2carpros.com/articles/how-to-reset-a-security-system

I am attaching the info below on this system including the wiring diagram that will help with any testing that needs to be done.

Please run through this and let me know what questions you have.

Thanks
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Wednesday, December 15th, 2021 AT 7:58 PM

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