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99 buick regal ls no crank
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yourname1999
New User
Nov 23, 2010, 1:01 PM
Post #1 of 2
(2805 views)
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99 buick regal ls no crank
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I know everyone is tired of answering questions regarding PK2, but after hours upon hours of reading through the numerous threads on this site, I am convinced that my situation is somewhat unique so please give me a chance. I have a 1999 Buick Regal LS. The security light has been a permanent fixture on my dash for years. A few days ago the car wouldn't crank. All dash lights and accesories work as usual. One thing that seems to be unusual on my system is the two tiny white wires protruding from my key lock cylinder versus the seemingly more common three wire setup I have read about on countless sites and threads. After checking these wires I found that someone had cut them and then twisted them back together and wrapped them up in elec tape. Once I removed the tape it was obvious the had corroded apart. Just to check, I cut the ends, stripped the insul, and twisted them back together. As suspected, the car fired right up. Out of desperation, we drove the car the rest of the day and part of the next with no problems. Without thinking too much about it, I untwisted them and properly secured them with connectors, soldier, and shrick wrap. As soon as I was done, I turned the key and I haven't heard it crank since. I checked the resistance of the key side of the circuit at the connector under the dash and it would not register anything unless I wiggle the key. So I measured the resistance on the key itself which was a solid 7.5k Ohms. Soldered some resistors together to exactly 7.5k Ohms and attached one end of the sting to one white wire and the other side to the other white wire. Still won't crank BUT the security light is now off. I've tried the on-off relearn procedure a few times, no change. Another thing that concerns me is system voltage at the starter S terminal when in start postion, but I suspect the PCM controls current through resistance, not voltage. I have never had any typical starter problems before. I suspect a faulty BCM but I cant find any information as to diagnosing it and I hate to throw parts at it. Also, I have checked the battery, connections, and tried to start it in neutral. This is the family wagon and our only car so any help would be great. Sorry for the long winded thread but I am absolutley desperate. thanks
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Hammer Time
Ultimate Carjunky
/ Moderator
Nov 23, 2010, 2:06 PM
Post #2 of 2
(2798 views)
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Re: 99 buick regal ls no crank
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There is no relearn procedure when you have a key pellet.
Here is the wiring diagram. You just going to have to find out what part of the circuit is missing
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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