1999 Chevrolet Silverado security module keeps coming on

Tiny
JAMESPM
  • MEMBER
  • 1999 CHEVROLET SILVERADO
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 168,000 MILES
Security keeps coming on & the truck will not start. We have tried to reset many times. The security light will go off; but as soon as we try to start the truck; the light will come back on & the truck will not start. We have replaced the security module & there is not a chip in the key. Is there something else that would cause this issue?
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Saturday, August 9th, 2014 AT 2:10 PM

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Tiny
JACOBANDNICKOLAS
  • EXPERT
First, are you sure of the engine size? I'm not showing a 5.7L for this vehicle.

Also, everything I show says the key should be chip in the key. There is a hall effect sensor that determines if the key is correct when you turn it.

Listen, I need you to have the computer scanned to see if there are trouble codes. I have system checks, but I have no idea where to look for your type of problem.
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Saturday, August 9th, 2014 AT 8:14 PM

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