so no one will do something bad
security light on 1998 s10 start but cut off
Nothing
passlock
Yes, the blinking securtity light will blink when the car is off.
There could be many reasons why a security light is staying on. There may be an animal that is in front of the light moving all the time such as a cat or even raccoon. The light may also be defective.
Try resetting the timer.
The security light flashes when a programed key is not installed in the ignition, when you insert a programed immobilizer key in the ignition the security light will go out, the light flashes as a theft deterrent
It should turn off when the key is turned to the 'on' position.
My guess is that maybe a relay or fuse has went bad in the electrical system, causing the security light to stay on constantly, therefore leaving a circuit open. This could be draining your battery, which is why your car is dead.
It means that there is something wrong with the engine and not the battery
Either the chip in your key is worn or the contacts in the key cylinder are bad.
If the switch is bad or out of adjustment, then the door ajar light will stay on. The overhead light will not go out, and the security alarm will not set.