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How can I test if my ignition switch is bad?

How can I test if my ignition switch is bad?

You’d better start testing by getting the switch to the OFF position. Connect the positive probe of the multimeter to the switch’s power feed wire and connect the negative probe to any unpainted metal in the car. Now turn the key to the RUN position and set the multimeter to measure voltage.

Why does my car ignition not start up?

There may be a few reasons why the ignition won’t start the car. Some of them are mechanical (such as a dead battery) and some of them are transponder key related issues. Ignition Cylinder and Car Keys.

Why does my transponder not start my car?

If the situation above sounds familiar, it looks like the problem is a transponder key or chip key related issue. Most models made after 2000 are equipped with a transponder security system built in the car’s computer. This is a method to prevent unauthorized keys from starting the car.

Do you have to have transponder key to turn on ignition?

Non-transponder key and a transponder key, that have the same keyway (meaning both will turn the ignition on but one won’t start the car since it isn’t a transponder key). You must make sure that if your car is transponder equipped, you have a transponder key.

Why does my car not start when I Turn on the ignition?

If nothing happens when you turn the ignition key to the “Start” position, it means that the starter motor doesn’t turn over the engine. Most commonly this could be caused by a dead battery; here is How to check the battery. If the battery checks out OK, but the starter still won’t crank, there could be a number of possible reasons.

You’d better start testing by getting the switch to the OFF position. Connect the positive probe of the multimeter to the switch’s power feed wire and connect the negative probe to any unpainted metal in the car. Now turn the key to the RUN position and set the multimeter to measure voltage.

If the situation above sounds familiar, it looks like the problem is a transponder key or chip key related issue. Most models made after 2000 are equipped with a transponder security system built in the car’s computer. This is a method to prevent unauthorized keys from starting the car.

Non-transponder key and a transponder key, that have the same keyway (meaning both will turn the ignition on but one won’t start the car since it isn’t a transponder key). You must make sure that if your car is transponder equipped, you have a transponder key.

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Ruth Doyle