What are the four positions of the ignition switch?

What are the four positions of the ignition switch?

The ignition switch generally has four positions: off, accessories, on, and start. Some cars have two off positions, off and lock; one turns off the car, and the other allows the key to be removed from the ignition.

Why is my Silverado running without the ignition switch?

Open the door, and all RP voltage, included this backfeed, is removed. You need the find the component that is “leaking” this RP voltage. It could be the ignition switch. It could be a couple of wires shorted together (where, I don’t know).

What happens when the ignition switch is off?

Generally speaking, in the “OFF” position, the ignition switch doesn’t connect anything; in the “ACC” position, the radio or fan may be energized; in the “RUN” position, the engine control module is energized; and finally, in the “START” position, the starter relay is engaged. (These generalizations, depend significantly on year, make, and model.)

What should I do if my car radio won’t work?

Apply 12 volt power to the vehicle either through the data link connector under the dash or by jumpering wires to a battery powered circuit at the fusebox or other connector. Always verify that all electrical devices and systems operate properly before releasing the car to the customer. Sounds like they failed on all three.

Can a car battery run down while listening to the radio?

There is no possible way that a good battery would have run down in less than an hour of listening to the radio with the engine off. Heck, lots of people forget their headlights on, which use way more power than a factory stereo, for way longer than an hour, and their car still starts after that.

What’s the correct position to listen to the radio?

If you need to listen to the radio without the engine running, such as if you are waiting to pick up someone, the correct position to do this is “acc”. On many vehicles, such as Chrysler products from the 1990s, the “acc” position is one notch counter-clockwise from “off”. Does that mean it was charged? No, it does not .

What happens when you listen to the radio?

Normally the accessory position just allows use of the radio and maybe other limited options like the power port. The on position would turn everything on like the fan and dash lights, power windows, etc. So you don’t use the on position for just sitting there listening to the radio.

Is it good practice to leave the key in run position?

In older cars some electrical ignition parts could fail as a result of this practice. I burned out the ignition module on an ’85 Ford LTD midszie wagon by leaving the ignition on by mistake. Is it a good practice to do this, no.