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MR2 Roadster Owners Club

The Workshop => Audio / Security / Electrical => Topic started by: philster_d on September 8, 2005, 08:34

Title: Bonet open detect switch
Post by: philster_d on September 8, 2005, 08:34
I noticed a pop up switch inside the bonet. I assume it tells the car if the bonet is open.

Anyone know wether it makes a circuit when its open or breaks one ?

At what voltage might that be ?

Phil
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Post by: kanujunkie on September 8, 2005, 08:58
yeah its the alarm one Phil, fraid i havn't got a meter at home with me or i'd check it out for you, chances are its battery voltage and a normally closed switch though but i cant say for sure
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Post by: Tem on September 8, 2005, 09:35
Most alarm switches are open when the switch is open (=the bonnet is closed). When you open the bonnet, the switch closes and grounds the wire.
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Post by: kanujunkie on September 8, 2005, 09:52
Quote from: "Tem"Most alarm switches are open when the switch is open (=the bonnet is closed). When you open the bonnet, the switch closes and grounds the wire.

thats called a normally closed switch Tem
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Post by: heathstimpson on September 8, 2005, 11:00
Quote from: "kanujunkie"
Quote from: "Tem"Most alarm switches are open when the switch is open (=the bonnet is closed). When you open the bonnet, the switch closes and grounds the wire.

thats called a normally closed switch Tem
s:lol: :lol: s:lol:  Teaching the masses our engineering knowledge Stu  s:lol: :lol: s:lol:
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Post by: Tem on September 8, 2005, 11:50
Quote from: "kanujunkie"
Quote from: "Tem"Most alarm switches are open when the switch is open (=the bonnet is closed). When you open the bonnet, the switch closes and grounds the wire.

thats called a normally closed switch Tem

I know  s;) ;) s;)  Just wasn't sure if philster was asking what happens when the switch is open or the bonnet.
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Post by: philster_d on September 8, 2005, 12:48
I need another similar switch which is on when open to power my planned bonet light  s:) :) s:)
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Post by: Tem on September 8, 2005, 13:34
Quote from: "philster_d"I need another similar switch which is on when open to power my planned bonet light  s:) :) s:)

They should have those in every car alarm shop or car parts store  s8) 8) s8)
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Post by: kanujunkie on September 8, 2005, 15:28
pretty sure Halfrauds do em Phil
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Post by: philster_d on September 8, 2005, 16:23
cool I have a good idea in my head. I hope it eventualy comes out as nice in real life.

thanks for the replies.
Phil
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