Blinking Check Engine Light - 2012 v6

608 Views 6 Replies 6 Participants Last post by iguanaman3, 2 mo ago

grantd

Discussion Starter · 2 mo ago

So I have a 2012 v6 mustang no start no crank out the blue I changed the battery an starter still no start no crank I see the anti theft light flashing multiple times when key is engaged an check engine light flashed 6 times what does it mean tired to reset the theft light but no start still relay sounded lik it clicked when key turned but no crank no noise when tryn to start

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crjackson

· #2 · 2 mo ago

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Forddenial

· #3 · 2 mo ago

The only time i've had the theft light and CEL flash together is when i used my doorlock-only key to try and start my car.
Only thing i can think of.

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Siber Express

· #4 · 2 mo ago

If you have a second key try it, that is what happens when the door key I have for the F650 is used in the ignition. Your key might be going bad. Also changing out the battery will not help the chip, it is seperate from the electric functions of the key.

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5LHO

· #5 · 2 mo ago

That's anti theft at work. I agree with the above conclusions. When you say changed the battery do you mean in the remote or in the car? Changing the battery in the remote or, at least checking its voltage and verifying is step one with anything like this. This is why I make multiple keys and program them for all modern cars. Get a glitchy one and it'll do this. If you've got just one key, you may be out of luck and need to get the car to the dealer..

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Siber Express

· #6 · 2 mo ago

5LHO said:
That's anti theft at work. I agree with the above conclusions. When you say changed the battery do you mean in the remote or in the car? Changing the battery in the remote or, at least checking its voltage and verifying is step one with anything like this. This is why I make multiple keys and program them for all modern cars. Get a glitchy one and it'll do this. If you've got just one key, you may be out of luck and need to get the car to the dealer..

The Chip is self contained, I have had my Fob on my Mustang Key pulled apart because the panic button was stuck on and everytime you got close it would go off. All they did was take a Key and the Fob and make it into one thing, still separate though.

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iguanaman3

· #7 · 2 mo ago

grantd said:
So I have a 2012 v6 mustang no start no crank out the blue I changed the battery an starter still no start no crank I see the anti theft light flashing multiple times when key is engaged an check engine light flashed 6 times what does it mean tired to reset the theft light but no start still relay sounded lik it clicked when key turned but no crank no noise when tryn to start

This can be because your PCM is not communicating or is not powered up. Check all the fuses that power the PCM.
Check this out...

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