??? Power window delay for old Toyotas

[BradW]

Looking at that circuit, I don't think it'd work personally,
The left relay is wrong.

BUT, it might work until you open the door, then once you close the door, the circuit becomes active again, meaning you've got power again, leaving your windows active to be opened by anyone.

Actually it will work.
When the key is turned off the accesories gets powered through the contacts of the relay on the left. When the door is opened the relay on the left turns off loosing power to the accesories (and the 86 pin on the left hand relay). When the door is closed the left hand relay wont turn on until the accesories (from ignition switch) is turned back on.

To hook this up for your power windows, just replace the accesories wire in the diagram with the power to your windows and fuse the battery supply appropriately.

[thechuckster]

From the old forums, care of chuckster.

This is the turbo time i have - built with about $10 of parts from any Dick Smith or Jaycar shop.

it simply breaks on the IGN wire coming out of the ignition-key switch.

It just runs the engine for 30/60/120 seconds after changing key away from IGN position.

30Kb PDF - original design found on the net:
http://members.optushome.com.au/mkha...timer_revA.pdf

please bench test before installing into any car.

will work for anything

URL fixed so you can all make timers that will delay just about anything.

only PITA part is that your alarm has to come on after the engine shuts down.

If you wired in the interior light circuit (drive another relay that provides a ground to the door circuit while the timer is active) you could fool the alarm into thinking the door is open so it wont auto-arm until after the timer is done its thing... in fact, i'll do that to the RA40 as it's alarm always comes on when the timer is on.

[ndgcpr]

URL fixed so you can all make timers that will delay just about anything.

only PITA part is that your alarm has to come on after the engine shuts down.

If you wired in the interior light circuit (drive another relay that provides a ground to the door circuit while the timer is active) you could fool the alarm into thinking the door is open so it wont auto-arm until after the timer is done its thing... in fact, i'll do that to the RA40 as it's alarm always comes on when the timer is on.

There you go your here to save the day again. i was realised that link didn't work and was gonna fix it honest

Its a good cheap easy circuit that could be used for anything really

[wagonist]

Actually it will work.
When the key is turned off the accesories gets powered through the contacts of the relay on the right. When the door is opened the relay on the right turns off loosing power to the accesories (and the 86 pin on the right hand relay). When the door is closed the right hand relay wont turn on until the accesories (from ignition switch) is turned back on.

To hook this up for your power windows, just replace the accesories wire in the diagram with the power to your windows and fuse the battery supply appropriately.

Actually, I think the relay on the right is wrong too now. The door switch will only connect when the door is open, not closed. The interior light normally works by power to the light, then earthed out via the door switch.
With the door closed, 85 isn't connected to earth, so no circuit as 86 isn't being grounded out (I'm only an amateur so if that's wrong, you'll have to explain it to me)
when 85 & 86 are opposite volts, 30 is connected to 87.
Say the relay on the right is working, 86 on the left has 0V, making it the same as 85 which is now earth, therefore 30 won't connect to 87 giving power.

[ndgcpr]

i thinhk the way it is assumed that realay works is wrong, i always thought that the coil is between 86 and 85 and 87 and 87a are always wired together and switch to 30 when there is 12V across the coil (at least thats how mine works).

The way this would work is if 87a is a normally connected contact and 87 is a normally open contact. so 12V across 86 and 85 would dissconnect 87a and 30 and connect 87 and 30. Hope that makes sense, and it would work that way.

[wagonist]

i thinhk the way it is assumed that realay works is wrong, i always thought that the coil is between 86 and 85 and 87 and 87a are always wired together and switch to 30 when there is 12V across the coil (at least thats how mine works).

The way this would work is if 87a is a normally connected contact and 87 is a normally open contact. so 12V across 86 and 85 would dissconnect 87a and 30 and connect 87 and 30. Hope that makes sense, and it would work that way.

Yep, I agree.
You can get a "crossover" relay where 87 is not connected to 30 when the relay is not active, & 87a is, & then when the relay is active, those positions are swapped.

[BradW]

Sorry guy's, I just reread my post and realised I don't know my right from left .
Let me try again.
The relay on the right (that is connected to the door switch) is a change over relay. When the relay is turned off (door closed) the 87a terminal is connected to the 30 terminal, providing an earth for the 85 terminal of the left hand relay (the relay connected to the accesories). When the accesories are turned on the contacts of the left hand relay are closed and the battery supply is connected to the accesories. If the accesories are turned off, the relay stays on as it is powered by the battery supply through the contacts.
When the door is opened, the right hand relay turns on and the 87a terminal is open circuited from the 30 terminal, which means the left hand relay looses its earth to the 85 terminal and turns off. When the door is closed the left hand relay wont turn back on until the accesories are turned back on.

I hope it makes sense .

I edited my first post too.

[wagonist]

This is how I think you're explaining it.
The right relay being a crossover works for me.
The left relay, because you've got Acc power at 85 & earth at 86, the relay is closed.
because the relay is closed it's supplying power from 30 to 87 & therefore to 85. So when you turn the acc off, its already got power coming through from 30 to 85 via 87 & so the relay stays closed.
When the other relay gets disconnected, 86 on the left on gets disconnected from earth & therefore the left relay opens.

That would work except for those times you open the door straight after you've turned off the ignition...

[BradW]

This is how I think you're explaining it.
The right relay being a crossover works for me.
The left relay, because you've got Acc power at 85 & earth at 86, the relay is closed.
because the relay is closed it's supplying power from 30 to 87 & therefore to 85. So when you turn the acc off, its already got power coming through from 30 to 85 via 87 & so the relay stays closed.
When the other relay gets disconnected, 86 on the left on gets disconnected from earth & therefore the left relay opens.

Yeah that's right only I couldn't say it in that few words .

That would work except for those times you open the door straight after you've turned off the ignition...

Basically it is a very simple way of doing it which has its downfalls.