2001 Aurora security light flashes. Key will not crank engine. Would like to just disable the system.

Reset Engine Check Light CodeS?? You need a scan tool or buy a FIXD Module.

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The security light blinking is the problem, you must get control module scanned for fault codes to diagnose the issue or you can bypass the system if you understand basic electrical systems . Just google bypass passkey system.

Sounds like the security system is causing your problem. Is the "security" light flashing? If it is, turn the key on, leave the key in the ON position for 10 minutes. The light will stop flashing. Now, turn OFF the key, turn it back to ON, and then crank it. It should start. If the security light starts flashing again, go through the process again until it starts. This is resetting the security system after the battery has died, battery has been changed, radio was changed, instrument cluster was removed and replaced, etc. Hope this works for you.

These are known for bad ignition switches. Check that first.

Maybe you are in valet mode. This will drain your battery.

If the security light is on constant, this means that the actual computer of the antitheft system has failed. If it were flashing, this would indicate that the key or ignition was failing. The problem may not be the programming of the key, but more the computer that receives the signal.

Read thru this site, may help you a little
http://vatspasslockpasskeysecurityhelp.yolasite.com/

The security system does not disable the starter, it only disables fuel to the engine. In the fuse block under the hood, locate the STARTER relay. Place your hand on this relay and see if it clicks while someone else turns the key to start...if the relay is ok then the starter itself is faulty. Good luck, i hope this helps.

No there is not a fuse to the crank sensor, and if you were checking for voltage at the crank sensor ,you should see more than 1 volt but less than two volts at the crank sensor positive circuit which is the Dark blue wire, the crank sensor is a hall effect type sensor which generates its own voltage, It would be very helpful to know how this no start problem came about ! was any work recently been perform on your car ? it is also possible that you have a theft type problem with your car, which if for any reason your car"s theft system thinks its possibly being stolen, (example does not like the key or the electronic chip in the key is defective) may put it into to a theft lock down, ford uses different methods to keep the car from been stolen,some are disable the starter (example no crank) another is to disable to fuel pump circuit, or disable the spark,the easiest way to make sure this is not whats the problem, is to monitor your theft light, (located either in the gauge cluster or on top of the dash,) you have a red light or a red key that flashes or possible or just says theft, if the system is working correct when you first turn the key to the run position the light ,key or the theft light will flash three times and then go out and say out if it continues to flash you have a theft problem.there are many other possible reasons why you could have no spark such as broken wires ,wires rubbed bare and grounding out to engine ect, I could help you further but would need more information to help you further ,hopefully this will get you headed in the right direction

It doesn't have to be the security. a dead battery won't let the car crank either. With a security problem the car will crank but not start. The security can be reset if the battery is charged and up. Turn the key on ( do'nt crank ) the security light will stay on if it needs to be reset. If it remains on leave the key on for 15 minutes around then it will go out. turn the key off and then turn it right back on, the security light will be on again. Leave the key on till the light goes out again, then turn it off then turn it back on , wait again when it goes out turnthe key off then right back on then crank the engine and it should start. With a scanner the code will be security neweds to be reset. Thia is all anyone can do to reset the security and it's what you were charged $450 for. Following directions.

Try this: attempt to start car. Leave key in "on" position for 10 minutes. Turn key off for 30 seconds. Attempt to start car. Leave key in "on" position for 10 minutes. Turn key off for 30 seconds. Attempt to start car. Leave key in "on" position for 10 minutes. Turn key off for 30 seconds. This lengthy proceedure is the pass-lock relearn. Should crank after this unless something is unplugged, body control module is bad, or other security issue.