Engine will not crank or start, Ignition switch pass key 3?

Tiny
TIMOTHY WAYNE DAVIS
  • MEMBER
  • 2002 OLDSMOBILE AURORA
  • 130,000 MILES
Car won't start or crank. Battery is hot all fuses good wiring appears okay. I tried to relearn the key. No help. Ignition has power. Acc and run positions working. There is a theft fault on the DIC. Starter works. I jumped starter relay with key in run position. It fired right up then shut off when I pulled jumper wire. The ignition switch looks fine inside and out it won't crank or start. Does anyone have a wiring diagram of the wires going to ignition and going out?
Friday, August 11th, 2023 AT 2:26 AM

5 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 50,321 POSTS
When you try to crank the engine over does the security light flash? If not, the system is not enabled. Here is the ignition switch wiring diagrams and a guide to help check for power:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Check out the images (below). Please let us know what happens.
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Friday, August 11th, 2023 AT 3:24 PM
Tiny
TIMOTHY WAYNE DAVIS
  • MEMBER
  • 24 POSTS
I've been starting the car by jumping the relay to power. I'm pretty sure the signal wire going to the starter solenoid is bad or shorted. Since I don't use the car that often and since the starter is under the intake, I haven't fixed it. Now I can get it to turn over it starts then shuts off immediately. I'm getting theft system fault on the dic. I've cleared all codes and ret but as soon as I hook battery up it gets the fault and will not start.
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Monday, October 16th, 2023 AT 9:12 AM
Tiny
KEN L
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  • 50,321 POSTS
So, I have seen the theft deterrent exciter wire break at the ignition switch, here are the wiring diagrams for it so you can see what I am talking about. Check out the images (below). Please let us know what you find.
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Monday, October 16th, 2023 AT 9:56 AM
Tiny
TIMOTHY WAYNE DAVIS
  • MEMBER
  • 24 POSTS
Thank you for the diagrams. I've tried 3 different exciter rings and tried several different. Starter switches. I got a new key that didn't work either. I suppose you're referring to the three-wire connector the exciter plugs into. I will change that and the wires and let you know what happens. One other thing is the orange wire that remains hot all the time going to the ignition when I turn the ignition to crank my test light goes out until I release it back to run position. I wasn't sure if it's supposed to do that.
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Wednesday, October 18th, 2023 AT 12:39 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 50,321 POSTS
The orange wire should be hot at all times, is the battery in good shape?

Please go over this guide to be sure:

https://www.2carpros.com/articles/car-battery-load-test

Please go over this guide and get back to us.
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Thursday, October 19th, 2023 AT 10:45 AM

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