I found out that the brake light switch (also called stop light switch) has two functions: 1 - It allows the brake lights to come on when the brakes are applied. 2 - It allows the transmission to shift out of Park position when the car is started on. It costs around $22 at the dealership and only $5 at the autopart store. The removal and installation of this switch was also fairly easy. It is located under the steering column area; it is mounted on the brake pedal, has an eleactrical plug connected to its two-prong connnector and it gets activated when the brake pedal is applied. It takes less than 5 minutes to install it.
The security light comes on after you changed the keys in the ignition from the off position to the on position as a confirmation that the electrical components in the dash board are working. It is nothing to be concerned about.
AnswerSounds like a bad ignition switch.I changed the ignition switch and there was no changeCheck the neutral safety / transmission range sensor next.I know, it doesn't seem it could cause electrical gremlins, but...
change the crank position sensor
we had the same problem. we changed the Crankshaft Position sensor, and also the camshaft position sensor. changed ignition coils, and the module under the ignition coil, and still had the stalling problem. an auto mechanic bought it from us and he discovered all that it was was a pinched wire under the ignition module.
It would help if we knew the year, make and model. It has to be something you did when you changed the ignition.
ignition switch i promise
physical energy
Your 1996 Chevrolet Blazer may not start due to a faulty ignition switch. The electronic fuel pump may also be faulty and need to be changed.
You have a bad ignition relay switch. I had the same issue with a Mitsubishi galant.
When they develop a fault.
No, you do not.
Put key in ignition in the second position and open the driver door. should reset in about 10sec.(assuming that you've changed the brake pad wear sensor)