That depends on when it's blinking. If it's blinking rapidly when you turn the key on, there is a problem in the anti-theft, and the truck probably won't start. If it's blinking every 3 seconds when the key is off, that is a normal condition. It's telling you that the system is armed and ready.
a malfunction has been detected , get it checked out by a professional
It means that the theft computer has detected a malfunction and set a trouble code.
The theft light flashes in your gauge cluster when the anti - theft system is armed - that's normal (Helpfull)
where is the wire for theft system 2000 ford ranger to bypass
This is just to deter theft. Whether or not your car came with an optional anti-theft system, the light will still be there, simulating a anti-theft system. It's just a light-emitting diode, so it doesn't have enough draw to drain the battery.
its always in theft mode. There should be a little light that will flash on the dash or around the speedometer when the ignition is off and the key is out.
Many vehicles come with an anti-theft feature. The cause for some vehicles system engaging is something as simple as dirt on the key, hitting the wrong pin, and the car not being in Park.
If the check engine light is blinking that means an engine cylinder misfire has been detected
Turn your key to the on position and see if your theft light is blinking. If it is then leave the key on for about 10 mintues. The light will go off. and then it might start.
This is the light for your security system. Shows that it is working.
The light is blinking because there is a problem with the SRS. You don't try and repair it. Working on the SRS can be very dangerous. Seek out professional help.
WE had the same issue with our truck. Its a sensor in the ignition that you can't change or by pass. Its an electronic chip sensor. It took 6 trips to the dealer to get this found and fixed. Good luck