Once programmed only one of these smart keys or chip keys can be used to start your engine.
2010 ford f150 theft light flashing.
Ford vehicles such as the ford f 150 are equipped with transponder key capabilities that allow you to program them electronically to your engine.
How to disable anti theft system on ford f150.
2010 ford f250 instrument cluster warning lights check brake system no start and theft light 2010 ford f250 interior cab with versus 2010 ford f250 pinout at obd2 connector with terminal safe t pin.
Leave the key in this position for at least 10 minutes.
Anti theft light flashing dashes on distance to empty.
Replaced the pcm and still have same problem.
Check the anti theft light again.
Insert the key into the ignition and turn it on to the position where the accessories are activated but not the engine.
The display of the car behind the steering will light up and will show the anti theft light blinking or constantly lit.
You can reset these anti theft keys in just seconds from your driver s seat.