I am having problems with the anti-theft system on my 2007 Ford Ranger.
For some reason it sporadically keeps tripping, and the truck won't start.
When this happens, the anti theft light starts blinking rapidly, and it will not turn over.
Also, sometimes it happens when I'm driving... suddenly the engine light will come on, and all other dashboard gages stop working. When I pull over and shut the truck off, the anti-theft light will come on, and again the truck will not start.
It does eventually reset after about 30-60mins, and suddenly the truck will start again.
But, by then I'm usually late for work...very frustrating!
I brought the truck into the dealership and they charged me $300 to update my PCM software, which they say addressed related symptoms and fault codes...
But, the anti-theft still keeps tripping. They checked the keys, and the battery and they all tested good.
Please help with any advice!
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