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1999 chevy suburban: the security light is stuck on and it..try next

 
ironmike's Avatar
  • Answered by:ironmike
  • ASE Master tech
  • Positive Feedback: 99.0 %
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Thanks for your help Ironmike, I believe you were right in that correct tools...
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While there's no clear cut solution, I appreciate the suggestions.
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That's what I needed to know, Mike! It is a reman and does have a warranty thru...
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Great information, quick response.
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great help
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Customer Question

I have a 1999 chevy suburban that the security light is stuck on and it will start for a second and shut itself off. I tried turning on the ignition for a while and that didn't help what should iI try next?

 

Optional Information:
Year : 1999
Make : Chevrolet
Model : suburban
Engine : 5.7

Submitted: 1164 days and 9 hours ago.
Category: Chevy
Value: $15
Status: CLOSED
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Expert:  ironmike replied1164 days and 9 hours ago.

greetings,

did you try another ignition key? can you check for codes?

Customer replied1164 days and 9 hours ago.

The ignition has been replaced about 2 years ago and I also tried a different key but no help there

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Expert:  ironmike replied1164 days and 9 hours ago.

Greetings,

there is a fault with the passlock sensor/wire harness or the bcm. These are hard to diagnose and a scanner is needed. The dealer has the best diagnostic tools and if the bcm or passlock is replaced the vehicle would have to be reprogrammed.

good luck

Customer replied1164 days and 9 hours ago.

It seems that the rainy humid weather effects this problem could this narrow down the problem, or can the security system be diabled

Accepted Answer

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Expert:  ironmike replied1164 days and 8 hours ago.

still the same possible failures. This system cannot be bypassed.

Expert TypeASE Master tech
Category: Chevy
Pos. Feedback: 99.0 %
Accepts: 603
Answered: 3/12/2010

Experience: 30 years ASE Master L1 GM certified

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