How Ignition switch works?

Hi all,
I want to know the working of an ignition switch. Couldn't find much
information on the internet.Does anybody have related information?
please reply..
The ignition switch of the car has four positions: OFF,ACC,ON,START.
The user manual of the car(WagonR) specifies the combination switch
coupler connections but not the voltages at any of these positions.
What is the resistance of an ignition switch? and How it actually
connects the terminals? and what are the voltages at these terminals
for each of the switch positions?

That's a lot of questions to ask:

There are several types of ignition switches.

I would say 99.99% don't have any kind of resistor in them.

A basic explination is:

Accessory position: Only the radio and a minimal amount of circuits.

Start engages the starter solenoid, and a secondary ignition wire, for the
ignition system, and injectors, when you relaese it. The primary wire for
the ignition is energised, and the starter contacts are released.

That's about the most generic explination I can givw.

I hope this helps.

RK
"Hari" <mm.harsha.TakeThisOut@gmail.com> wrote in message
news:1190802760.886467.32390@19g2000hsx.googlegroups.com...
> Hi all,
> I want to know the working of an ignition switch. Couldn't find much
> information on the internet.Does anybody have related information?
> please reply..
> The ignition switch of the car has four positions: OFF,ACC,ON,START.
> The user manual of the car(WagonR) specifies the combination switch
> coupler connections but not the voltages at any of these positions.
> What is the resistance of an ignition switch? and How it actually
> connects the terminals? and what are the voltages at these terminals
> for each of the switch positions?
>