How to Wire Relay Power Door Lock
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- čas přidán 22. 04. 2012
- How to do a Relay Power Door Lock
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Power door locks have been around for many year, but manufacturers use different wiring schemes. One wiring scheme is resistive rest at ground, which has been used in the past by various manufacturers including Ford Motor Company. Resistive rest at ground is meant to keep both power door lock solenoids grounded, and then a positive pulse is applied when needed.
The power door solenoid or actuator is nothing more than a DC motor type component, which changes the direction of the lock actuation by reverse polarity. In other words, the door lock is actuated by reversing the polarity going to the solenoid. Here is where a relay becomes a very versatile controller of sorts.
Here's how the circuit works:
Power is fed from the fuse to terminal 85 of the relay coil. This right away tells us that the relay actuation is going to be by ground, which is a lot safer. From the fuse, power is also fed to terminal 87 of the relay. This is a variation of how we normally connect terminal 30, which normally goes to power. But, not here where terminal 30 is used as an output. Terminal 87A is connected, on both relays, to chassis ground.
In this configuration, both relays connect the .... Get the whole story right here in this video...Enjoy...
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Thanks for the idea. I'll keep it in mind.
I think it would help the illustration if you went over the last part graphically, showing the position of the actuator, up and down, when you change the position of the switch. The words are there to follow it, but to trace what's going on, you have to pause the graphic to follow the path of the circuit. This is a very useful video, though, and helps a great deal.
Yes, exactly... Double Though Single Pole is fine. If all you can get is a double pole that's fine too, just don't use the extra pins. Keep me posted on your development. Good luck.
You can also you this method to up and dowm window screen. Yes,this refresh my memory what i have been thought at school.
Cool
Ground, as the schematic says goes on the center of the switch and then to chassis. Do that and post back with more. Thanks for trying.
it would be great if you could highlight the wiring for each switch position. Then the circuit route would stand out while you are talking and the viewer could see how and why the switch completes the circuit!
Yes, you can get the book and DVD titled "Make Your Own Diagnostic Equipment - MYODE" at google-play and amazon, keyword Author Mandy Concepcion. THe parts can be purchased at MOUSER and Digikey. Thanks for posting.
can you explain how to connect the motor from the rack to open when the remote button is pressed by the button that is in that function
Thank ya 4 dis vid..
very usefull graph thanks. i dont need to use my brain to figure it out. in that case i prefer using 4 actuators 2 wire with central lock switch somewhere for further secure.
THanks for sharing, but you still need the schematic given for it to work.
good job
please upload videos of 5 wire actuator connected to remote central lock.
Well the fastest way is to use the front doors to trigger a relay at the rear door. The relay in turn also actuates the lock motor/actuator. The other way is to use the circuit seen here. Remember, you need two relays in this circuit, one for up and one for down Lock/Unlock. Makes sense?
THANK U FU** MUCH >>>>> iv been looking everywhere for an animation video like this .. now i understand lol
Use the captions feature...
such a friend. diagrams are very good, but I would like to explain it in Castilian. I do not understand English. thanks
Hello sir can I use this if I want to install keyless entry module?
Thanks for posting. Take a peek at our "Stories from the Road" series on this channel. Good luck.
Hi, ADPT. I have dodge pick up ram 1500 '2002 with quad door cab.
front driver side and front passenger side does have power door lock on it
the quad door cab doesn't have power door lock. I would like to install the switch and power door lock on it. How to connect them? Thank you
In either position if the switch stays on the motor will keep running so it will drain the battery, most cars have the switch integrated in the drivers side motor and the switch will stay on,so in this case use a central lock module which only delivers a pulse instead of continuous current.
Holiday Mauritius In this video the whole thing works totally different.
how do relay alternate polarity please give clearer understanding i am not getting
sir,can u give a more clearer circuit so that we can understand it clearly..
Hi, can you please say why it is better to use a relay and it is not sugested to wire up directly the central unit to battery and to the acuator? Without using a relay may drain your battery ?
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is it possible to wire the relay and actuator in such a manner so that the actuator can control the choke of a generator..moving 'up' then 'down' in about 2 seconds?.....thanks
Yes
I got the lock working and the alarm working but only when one is connected to the actuator because when I connect both to the actuator it looses power and the actuator barely moves how do I connect both of my switches and alarm to the actuator ?
I suggest you look at other videos in this series that deal with just that. We also offer a publication with the same title. See our website for more. www.autodiagnosticsandpublishing.com/
juan leal
Will this work with a 2002 Dodge Ram? I have the door switches, harnesses, & motors from a donor truck but have to wire them up using relays, my truck came with manual locks.
Jacob Lindsey It works on any car. Just make sure you understand current flow. Here's some help.
www.autodiagnosticsandpublishing.com/Automotive_Diagnostic_Repair_Book_Catalog.htm
Thanks. I was just confused because from the factory the switches use an in-line ohm resistor to lock & unlock the doors. I didn't know if I would have to solder in those resistors somewhere or if that was when using with the computer. I'm guessing since it's being wired completely different with SPDT relays they aren't needed.
Right, it's a totally new installation. So long as the actuators are 12 volts, and 99% they are, you're fine. Good luck.
Thank you so much! Now I just gotta find a schematic for the wires coming out of the switch & I should be good to go.
Jacob Lindsey Some systems like Nissan the switches are networked, so it's not like the switch closes a contact. It's more like the switch outputs a CODE-Up or a CODE-Down... So be careful...
Im have a question my car when the key is on the power door is working but when im turn off that not work you know why
If controlled by module, there is a missing B+ input to it.
Check ignition switch.
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what kind of switch is needed
SPDT or single pole double through switch. If you have no SPDT, then use DPDT, but make sure they're momentary switches, not constant.
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No you're not understanding the circuit correctly. That's not how it works.
If my car doesn’t have a door locking switch then what…
let's pretend the door lock switch is pressed down, then lower relay stays ON all the time when car is left? Looks like wasting battery.
Not working
Why not?