Question about Buick LeSabre

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My 97 buick lesabre will not engage the starter when I turn ignition to the start position. The starter only has the positive cable and a purple wire going to it. I can manually apply the 12 volts to engage the starter and the car cranks, but it goes back dead and I still can't engage the starter with the switch. It's consistent ever time. The purple wire never applies 12 volts.(Starter is good). I'm thinking it's something in the VATS but I don't know how to check it, however I'm open to any other options it could be as well...

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  • Buick Master
  • 942 Answers

If the anti theft light is on,turn the key to on and wait until that light flashes or goes out,(may take 20 mins)then it has relearned the key code.Hopefully that's all it was that prevented power from completing the starting circuit,which includes the neutral safety switch in addition to the ignition switch and anti theft module.Also try putting it in neutral and try to start it.

Posted on May 01, 2017


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Posted on Jan 02, 2017

  • 43 Answers

SOURCE: car won't crank

although your ignition switch would have power go to the accessories, it still could not turn over. it happened to me, after a week of trouble shooting i went and found a starter button and spliced it into the ignition wires to see if that was the problem, lo and behold i turned the key on to run and pressed the button. and she fired right up.. if you know anyone with mechanical skill. its pretty simple to set up. took me 10 min to do.

good luck

Posted on Nov 16, 2008

  • 1584 Answers

SOURCE: 94 Chrysler Town and Country won't start with key.

has it got an immobiliser / if so there is a fault there. If not an ignition switch itself.

Posted on Apr 07, 2010

  • 20 Answers

SOURCE: 1995 Buick Century 3.1, 175,000 miles car will not

You need to explain to me what you mean by "fuel injectors engage". Fuel injectors have nothing to do with the starter engaging with the engine and turning it over. You need to take the car to a place that can load test the battery for you. An autoparts store usually can do that for you. Or, if car can not be moved, take the battery out of the car to have it tested. Start there, then we can move on to other possibilities.

Posted on Aug 05, 2010

  • 2217 Answers

SOURCE: 2000 cavalier No Start? Dad has a 2000 cavilier

Here is a link for help with the antitheft system. Might help you out

Posted on Oct 09, 2011

  • 29 Answers

SOURCE: No start, no noises when key engages the start position.

The large red wire at the starter is to the battery. The smaller wire is hot in the start position only! have someone turn the key to start and then check for voltage. If you have voltage you need a starter. If there is no voltage you either have an open from the ignition switch or a bad switch on the column. 1 last thing. Most cars have a fusible link at the starter. If there is a short somewhere the wire acts like a fuse and blows. You can check that by pulling in the wire or just feeling for a spot with no wire.

Posted on Jul 21, 2012

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We put the new starter on today, and the car still won't start. We are thinking it's the starter relay. What else can be wrong with the car? can you please help us we depend on that car. Thank you

There is no starter relay shown in a wiring diagram. The only thing between the ignition switch and the starter solenoid is the park/neutral switch (or the clutch pedal position switch on manuals).

Do the warning lights and gauges come on with key on? That would verify power is into the switch and being sent out. The small purple wire on the starter solenoid should have power on it when the key is held in start position. If it does, recheck your starter and battery connections. When the purple wire energizes the solenoid, the starter motor should crank the engine.
If no power on the purple wire in start, check the neutral safety switch or the clutch switch if a manual. The start wire out of the ignition switch is a yellow wire, and the wire from either safety switch to the starter solenoid is a purple wire.
(The power to the ignition switch is from the 50 amp Ignition fuse in the under hood fuse block.) See? The positive battery cable is connected to the starter, but not to the starter motor. When the key is in start, the hot purple wire energizes the solenoid and the battery cable is connected to the starter motor.

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Purple wire runs from Park/Neutral position switch (or clutch engage switch M/T transmission) straight to the starter solenoid. First, assuming 60A ignition switch fuse under the hood in the power distribution center good, check for 12V at YEL wire (from ignition switch) at the switch when ignition moved to START position. If 12V present at YEL, but absent at PPL (also in START position), replace the Park/Neutral switch. If no voltage present at YEL wire then must verify 12V at RED (242) to ignition switch next. If present replace ignition switch. Hope this helps.

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No, the horn circuit has no connection to the starter. There is not even a starter relay in your starting circuit.
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I sent you problem about '91 olds without ignition or pwr windows,locks or trunk. You suggested i try checking fusable links on starter but they're all ok except for one purple wire coming from starter...

You should have recieved a reply from me on your other post. If not,

The purple wire is the power supply to engage the starter solenoid when you turn the key to the crank position. It should only have power when you are trying to start so thats nothing to worry about right now. Follow the positive battery cable from the battery. There is another fusible link that supplies power to the ignition switch. For the life of me I can't remember specifically where is it but I do know it is under the hood somewhere along one of the positive cables.

I’m happy to assist further over the phone at

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ok. the relay is under dash drivers side left of the steering column. now first check for power with key in the start position. at the heavy yellow wire at the relay and then check the purple wire if both have power then your neutral safety switch mybe at fault. check it as well. check for power at the switch bolted to transmission. the two heavy wires going to the switch will be starter in and starter out. so check for power at the two there if power goes in but nothing comes out the change the neutral safety switch.

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