i am building an auto door lock circuit, need some help..

[Dexter]

i am going to be building an auto door lock circuit and i need some help, as the title says.

is there a wire that either goes low, or goes high, but some wire that responds to the key being taken out of the ignition?

i already have the timing circuit rigged up, just need to hook it up to the car itself. what i want to happen is
1) key removed from ignition cylinder
2) 15 second delay
3) ???
4) Doors lock
5) profit

thanks

 

[mazdadan]

Don't know if this will help you or not, but here is some good info on building lock circuits. http://www.the12volt.com/doorlocks/page3.asp

One note if you don't already know this....our door locks require a resistor to trigger the lock/unlock circuit.

 

[Dexter]

hey thanks much for the link, going with the door trigger might be an alternate way...hrm...

the reason im building this circuit is for cars with turbo timer. while the car is running, you cannot use the remote lock/unlock.

 

[mazdadan]

hey thanks much for the link, going with the door trigger might be an alternate way...hrm...

the reason im building this circuit is for cars with turbo timer. while the car is running, you cannot use the remote lock/unlock.

There may be a simple solution for you assuming you have factory keyless entry. In the keyless entry module, there is a wire the receives +12V when the ignition is in the run position or the engine is running. You could simply disconnect this wire at the keyless entry module. This will make the keyless entry module think that the engine is not running, therefore allow you to lock your doors while the engine is running. This shouldn't effect the optional factory alarm, since it is a different module. The factory keyless entry module is under the plastic panel covering the rear deck. Unless the MSP is different from the ES and MP3, you should be able to find it there. Just find the wires you need with a volt meter.

Depending if you have the optional alarm and how it is wired up, this may or may not work...just a thought for you give a shot.

 

[Dexter]

score...ill check it out when i get home...any tips how to get to the box? under the rear deck panel...with the speakers, right? it might be harder for me to get to, since the MSP has that kenwood stuff all bolted up in there...

 

[mazdadan]

score...ill check it out when i get home...any tips how to get to the box? under the rear deck panel...with the speakers, right? it might be harder for me to get to, since the MSP has that kenwood stuff all bolted up in there...

It's under the rear deck panel with the speakers on the inside of the car. You shouldn't have to go into the trunk to access it, unless the sub is in the way. All I had to do to remove mine was fold down the back seats and pull a few plastic clips out, then the whole rear deck pops out. The keyless module is in the middle of the two speakers. It is a small box that I think says Naldec on it. If you unplug the harness from it and try to use the keyless entry, this will verify that you found the correct box. It should be the only box under the rear deck.

 

[Dexter]

locking the car while the engine in on would probably arm the alarm at the same time, correct? wouldnt the running off the engine and stuff cause the alarm to activate? hrm. must test.

in the MSP, i dont think there are actually speakers in the holes, because of the amp and sub mounted there, so i think i will have quite an adventure... lol

 

[mazdadan]

locking the car while the engine in on would probably arm the alarm at the same time, correct? wouldnt the running off the engine and stuff cause the alarm to activate? hrm. must test.

in the MSP, i dont think there are actually speakers in the holes, because of the amp and sub mounted there, so i think i will have quite an adventure... lol

See that's what I wasn't sure about in my earlier post. You will probably have to test and see how the alarm behaves. Hopefully if the alarm is wired seperately from the keyless entry module, it will not arm, because it is tapped into the igntion switch in another location. In every protege I have seen with the optional alarm, the two boxes are seperate. The alarm is in a different location from the keyless entry module.

Another cool thing you could do is set the alarm system for passive arming. This would make the alarm system arm itself automatically once the turbo timer shuts the engine off. I'm not sure if the factory alarm supports this option, but most aftermarket alarms do. The factory alarms are usually made by CODEAlarm. If you got a seperate insruction book for the alarm, it may have some info regarding passive arming.

If there are no speakers in your rear deck, it shouldn't be any harder because you are just taking the panel off that covers where the speakers would be. And as far as I know, the panel is completely attached from the top. Good Luck...keep us posted on your findings.