How does an ignition switch work?

How does an ignition switch work?

Once the ignition switch is prompted by key or the push of a button, it activates the voltage from the battery to the ignition coil to produce the engine spark. The engine spark from the coil or coils is directed to the spark plugs to ignite the fuel to make the vehicle run.

Is the ignition switch and the starter the same thing?

The starter is an electric motor that cranks the engine, effectively starting the car. The ignition switch is a set of electrical contacts that activates the starter and usually is located on the steering column. The ignition switch activates the main electrical systems in your car.

What is the purpose of the ignition switch?

by Michelle Schaefer. The ignition switch in a motor vehicle is the main electrical component used by the operator to start, run and turn off the vehicle. The main purpose of the switch is to allow the operator to safely engage the ignition system and activate the electric starter.

Where does the wire go on an ignition switch?

Connect the ignition wire to the “IGN” terminal of the ignition switch. This is the main terminal that is used for vehicle ignition, wipers, accessories and other operating features. This is the normal “run” position of the switch. Reconnect the cable to the negative battery terminal.

What should I do when my ignition switch is off?

Turn the key to the Ignition or Run position and measure continuity between the BAT terminal and the IGN terminal. You should have continuity in the run position. It should be open circuit when the key is off. For the starter input, check your configuration sheet to identify the wire color for the starter.

What are the numbers on the back of the ignition switch?

Locate and identify the pins on the back of the ignition switch, There should be four terminals marked “BATT” for Battery, “ST” for Start, “IGN” for Ignition, and “ACC” for Accessory. Some switches may use a different letter or number code, so check with the manufacturer of the switch to properly identify the terminals.