Testing Neutral Safety Switch - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 11-10-2007, 02:12 PM   #1
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Default Testing Neutral Safety Switch

I have a 98 Bonneville SSEi. Have check starter, battery less than a year old, battery cables have been cleaned of corrosion, alternator replaced 6 months ago. Car will not start! Have jumped off the starter and it started and then died. Is there a way to check the neutral safety switch? If so which sides should be getting power?
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Old 11-10-2007, 02:54 PM   #2
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Usually you throw it in neutral and try starting it with your foot on the brake. If it starts the switch is either out of adjustment or bad.
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Old 11-10-2007, 02:56 PM   #3
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1st tell us what the security light does when the key is turned to the run position. Vats (Vehicle Anti-Thief System) problems are more common than park/neutral switch.
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Old 11-10-2007, 03:05 PM   #4
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Default Securty ligh

security light just blinks constant until you take the key out and shut the door then it goes off.
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Old 11-10-2007, 03:22 PM   #5
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Security light should just come on for a few seconds. You can try another key &/or cleaning the contacts inside the lock cylinder. Most likely you'll need to do the Vats bypass or replace the lock cylinder. Here'* a link to an article on the bypass.
http://www.asttraining.com/Files/vats1.pdf
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