Security light flashes car cranks but won`t start any way to bypass security .

Connect it to a Scan Tool.

Is the Security Light flashing?

Ideas here

https://www.google.com/search?q=2009+Chrysler+Aspen+cranks+but+won%27t+start

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OK. Turn on the key, let the light start flashing. Leave the key in the ON position. Leave it that way for 10 minutes. The VATS security is supposed to discourage a thief from stealing your car. It will flash for 10 minutes and then it will stop flashing. Now,,,,,, DO NOT turn off the key. DO NOT turn it off. Simply take ahold of the key and crank the car up. It will start and should never happen again, unless someone removes the instrument cluster, the battery, or other vital items like the ECM PCU. Good luck.

You can either buy a security bypass online or wire in two 15k resistors into the three ignition wires. Pink, green and brown.

you have breached the security system and it doesn't recognize the key so try your spare key or try to bypass the security system

Is the security light on or flashing ?
The yellow wire goes from the key switch to the neutral safety switch, then to the starter. So bypassing the neutral safety would make the starter crank the engine, but would have nothing to do with the rest of the engine.

Is it just not cranking/starting with the security light flashing? If so turn the key to the on position & leave it on for about 10 minutes or until the security light stops flashing. Then turn the key off for a second then try starting the truck. If this works check into bypassing the body control module with a resistor. Hope this helps.

If the security light is on, then you have a failed antitheft system. This light is only for this. If you bypass the system, your car will work perfectly again.
http://vatspasslockpasskeysecurityhelp.yolasite.com/

you can not bypass the security in that car, it is built into the main computer, they have problems with the ignition switch screwing up and the only way to start it while the light flashes is to turn the key to ON but don't crank engine, leave on for 10 to 15 minutes until light goes out then start car.

leave the key in the ignition, turned to 'run' (just before the crank position) and leave it there for about 15 minutes-the security light will then stop flashing-so NOT turn it off, turn it to crank and start the car. You have a security module that is not seeing the same resistance in the ignition switch as it expects, meaning you will have to either replace the ignition switch (expensive) or bypass the module (easy and inexpensive)-I have done lots of these, requires about 15 cents worth of parts and can be done in 1/2 hour.

It's when the security light starts flashing that the infamous "chip" in the key becomes a nightmare to many. Gradually the car begins not cranking anymore or if it cranks it would start and die in a second. Randomly it will do this more and more often until it won't start anymore. VATS, PASSkey and Passlock immobilizer systems are killing cars all over North America, they have a short lifespan and are certainly more effective against owners than thieves. Here is how you save your car
1st trick, (if not starting) turn the key forward 2 clicks till right before it would normally start, leave like that for 10 minutes. ( no less ) After 10 minutes, turn key back then forward and your car might start. I did this in my regal for more than a year. If its shuting down while running, im sorry i have no quick fix...

Cheap fix: Bypass the chip in your key. Temporary, but effective. Until the TDM (theft deterrent module) in the dash poops out, then you're kinda screwed. I was told that these types of key security systems have a 7-10 year life span. Sucks for us. This link explains the "Key Issue" pretty well.
----- http://vats.likeabigdog.com/


Never worry again fix: Bypass the whole VATS/Passlock/passkey I or passkey II system entirely. Literally take it out, and throw it away. I just did this in my Regal. Took about an hour. Took longer to find the thing than it did to fix the problem. For a list of cars effected by this problem. See the NEWROCKIES link on the right side of their page......... They sell a unit for 200 bucks to totally bypass this system FOREVER. life time-money back and all that. Finally did this in my car. Well worth the 200 if you've looked into getting this replaced... Anywhere from 600-1000 bucks.
----- http://newrockies.ca?ap_id=judd0081
----- With this fix, you can take that whole Vats, passlock, passkey **** system out of your car all together. Good info on both sites