JDM Power folding mirrors
Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=32737
Printed Date: May 03, 2025 at 8:41 AM
Topic: JDM Power folding mirrors
Posted By: dannylee312
Subject: JDM Power folding mirrors
Date Posted: May 25, 2004 at 5:33 PM
Hi all, I'm new to this whole electronic's scene, and I've done soooooo many, and vast searches on the net (and on these forums), but no one seems to know what I am talking about. I have a 94 Honda Prelude, and I just installed the power folding mirrors to it, but there's one big problem...I have no realy box. So, I've been searching left and right, asking 20+ or more people from alarm guys to electricians(I know, I know, they must all be idiots). But my simple question is how do is just switch the polarity of the switch when i hold it down, I want the mirrors to fold in, and when I hold down the switch again, I would like them to fold out. And I know that this action can be down with BOSCH 30 amp automovive relays. I have been told to use a "flip-flop" relay diagram for reversing polarity, but I don't know what goes where. I feel like such an idiot. Here's the run down on the switch and wiring: Each mirror has just 2 wires coming from it, and the switch just has 1 wire coming from it, which only has +12v when the switch is depressed, and only when the car is running or on ACC. When I ground one of the wires and then connect the other wire with the switch wire they would FOLD IN, and then when I switch one of the mirror wires with the ground and the switch wire, they FOLD OUT. Any help if you can.....At this point I am like begging, Thanks a million to everyone in advance!! Danny Lee
Replies:
Posted By: Velocity Motors
Date Posted: May 25, 2004 at 5:46 PM
You need a flip flop relay configuration. I'm not by my computer at the shop with my notes, but I'll try to get it to you later this week unless someone else has this information for him ? ------------- Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: dannylee312
Date Posted: May 25, 2004 at 5:48 PM
Thanks a lot Jeff...I've been yanking out all of my hair.....now I got to get some ROGAIN!!!
Posted By: FourthGenHatch
Date Posted: May 25, 2004 at 7:14 PM
Hey could one of you guys let me know how you make that flip flop relay or where I could buy one? I need to wire up JDM mirrors also.
Posted By: Velocity Motors
Date Posted: May 25, 2004 at 10:40 PM
Here you guys go. This was my first attepmt at this a couple of years ago : https://www.the12volt.com/installbay/forum_posts.asp?tid=2259&KW=flip+flop Here is the relay for the single wire trigger : https://www.goodmancomponents.com/products/s706_707.htm ------------- Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: auex
Date Posted: May 25, 2004 at 11:11 PM
Hey Jeff, on the first link it says "Sorry, only members with sufficient permission can access this page.".
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Posted By: Velocity Motors
Date Posted: May 25, 2004 at 11:35 PM
The inforamtion was on the Moderator forum so that's why you can't access it, sorry. I'll cut and paste what I can peice by peice as this thread was rather large. the12volt Administrator 
Joined: March 07, 2002
Location: United States
Posts: 1,779 | | Posted: July 29, 2002 at 1:16 PM - IP Logged | |
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Hi Jeff, I saw this post by someone else a bit ago....Use a latching relay and two SPDT relays to obtain two different outputs from the same signal for as long as you hold down the button (output). You can purchase latching relays from most electronic shops and possibly Radio Shack. We have a place down here called Pelican Electronics that I used to get mine from. You'll run the output from your RKE or alarm to one side of the coil of the latching relay and to the common. The 2 outputs from the latching relay will go to each coil respectively of the 2 SPDT relays. I see that we've been getting a lot of requests for something similar to this and I'll try to draw and post a diagram showing everyone how to do this with the latching relay and another way with only using SPDT relays. This is something I came up with years ago when I designed the relay remote start and I guess I should finally include it on my site. |
| | Back to Top |      |  | Velocity Motors Moderator
Joined: March 08, 2002
Location: Canada
Posts: 6,374 | | Posted: August 05, 2002 at 7:41 AM - IP Logged | |
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That sounds great !! I haven't had the opportunity to installt he 3 relay set up I had but this is what I got ( don't laugh, remember I said that relays aren't my bag  ): Here's what I have on paper and let me know if this will work or not before I fry the motors on the mirrors  1 st Relay : - 30 : One wire from the JDM Mirrors
- 87 : 12 volt constant
- 86 : to 87 of latching relay
- 85 : 12 volts constant
- 87a : Ground
2 nd Relay: - 30 : Other wire from JDM Mirrors
- 87 : 12 volt constant
- 86 : to 87a of latching relay
- 85 : 12 volt constant
- 87a : Ground
Latching Relay: |
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------------- Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: Velocity Motors
Date Posted: May 25, 2004 at 11:38 PM
Velocity Motors Moderator
Joined: March 08, 2002
Location: Canada
Posts: 6,374 | | Posted: August 06, 2002 at 9:25 AM - IP Logged | |
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As for the relays, my (-) pulsed from the alarm is a latched output ( about 4 seconds ). Would it still work the way that I have it above. It seems that the Radio Shack in town here does not have the latching relay. I think you mentioned in one of your posts in the past about the FLIP FLOP relay that you can accomplish this cicuit with just 3 SPDT relays. I'm on a time limit here with my installation ( who isn't right  ) so I can't wait for one to get to me in the mail. Thanks for looking at this ... I know your a busy man. |
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the12volt Administrator
Joined: March 07, 2002
Location: United States
Posts: 1,779 | | Posted: August 09, 2002 at 7:52 AM - IP Logged | |
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Yes, that's the relay I referred to when I said it is not needed. The SPDT relay you described as a latching relay is not a latch and after drawing what you described, that relay is not needed to activate the coils of the other two relays.... Are the alarm outputs you described here for 30 and 86 the same output from the alarm? Latching Relay: 30 : Alarm (-) input wire with a diode ( band facing the alarm system ) 87 : to 86 of 1 st relay 86 : Alarm (-) input wire with a diode ( band facing the alarm system ) 85 : 12 volts constant 87a : to 86 of 2nd relay If they are, you will need to do what I described above. If these are two separate outputs, the relay you described above is still not needed. |
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------------- Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: Velocity Motors
Date Posted: May 25, 2004 at 11:39 PM
Velocity Motors Moderator
Joined: March 08, 2002
Location: Canada
Posts: 6,374 | | Posted: August 09, 2002 at 11:08 PM - IP Logged | |
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I can have separate outputs to each function if necessary. I have a total of 6 channels remaining on my expansion module that have nothing on it yet and I made sure I left all the latching ones in case I needed two of them. Thanks for taking the time to doa diagram for me Steave.... it's always easier to see a picture and you know what they say about pictures......  Jeff |
| | Back to Top | | | the12volt Administrator
Joined: March 07, 2002
Location: United States
Posts: 1,779 | | Posted: August 10, 2002 at 9:02 AM - IP Logged | |
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Okay...well being that you have several latching outputs you can use, you'll only need 2 SPDT relays to control what you described. If you are not using a switch in the vehicle to control these, wire the relays like this: 1st Relay :
30 : Motor side (1) of the JDM Mirrors
87 : 12 volt constant
86 : to 1st latching (-) output from Alarm
85 : 12 volts constant
87a : Ground 2nd Relay :
30 : Motor side (2) of the JDM Mirrors
87 : 12 volt constant
86 : to 2nd latching (-) output from Alarm
85 : 12 volt constant
87a : Ground If you have a switch in the vehicle controlling these and the switch is normally grounded, wire the relays like this: 1st Relay :
30 : Motor side (1) of the JDM Mirrors
87 : 12 volt constant
86 : to 1st latching (-) output from Alarm
85 : 12 volts constant
87a : Switch side (1) of FDM Mirrors 2nd Relay :
30 : Motor side (2) of the JDM Mirrors
87 : 12 volt constant
86 : to 2nd latching (-) output from Alarm
85 : 12 volt constant
87a : Switch side (2) of FDM Mirrors If you want to control the same 2 functions with only 1 latching output from the alarm, you'll need what I initially described using a latching relay and 2 SPDT relays where terminal 86 of each relay in the above configurations would go to two respective terminals of the latchng relay that is controlled by that single latching output from the alarm. |
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------------- Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: FourthGenHatch
Date Posted: May 26, 2004 at 5:52 AM
Yeah if you guys could make a diagram showing me how to do this I would be infinitely greatful. The button to operate the folding mirrors is supposedly just connected to one wire. I have yet to get my mirrors in the mail so I don't even really have an idea how the wiring on them is. I'm just going by what people said.
But you are saying I can do this with just SPDT relays right?
Posted By: MASTER4666
Date Posted: May 26, 2004 at 6:38 AM
Here are two sites that really helped me install my mirrors. https://students.washington.edu/kristic/honda/jdm/mirrors/mirrors.htm https://www.geocities.com/dwnlow91/JDMmirror.html My favorite way so far having them setup is using the DPDT relay they recomend on the first page I listed and connected the mirror signal to my handbrake light switch. The only problem that I came across doing this is that the brake light on the dash is dimmly lit. Not enough to see during the day but bright enough at night to bug me. To get rid of this I'm going to try and hook up a normal SPDT relay to it and see if that doesn't get rid of that bugger. I tried using a diode to direct the current only to the relay but the light still stay lit. Another problem you may find with the mirrors is the driverside has the convex mirror. I simply went to an automotive glass shop and for 10 bucks had a normal mirror made. That and some of the strongest all-weather double sided 3m tape I could find. Hope this helps.
Posted By: dannylee312
Date Posted: May 26, 2004 at 9:27 AM
Master4666, Thanks for the info on these two sites, unfortunately I have already looked at these 2 already, and nothing is helping me at this point-(maybe group therapy would do). But like ForthGenHatch said, if you guys could just come up with a wiring diagram or a detailed drawing of it, that would be great, and thanks a lot to velocitymotors for your contributions too. BTW, the power folding mirrors for the 92-96 prelude are lens exchangable, so for those of you who have the USDM ones just pop them off by slowly pulling from the BOTTOM to the TOP-they will just pop right off!! Then you can just snap them on from TOP to BOTTOM on the JDM mirrors. I am not sure if this works for any of the other Honda mirror sets, but I do know that this worked for me on my bb2-bb4 prelude. I hope this bit of info helps! Danny Lee
Posted By: FourthGenHatch
Date Posted: May 26, 2004 at 6:34 PM
When I hook mine up I want them to work just like they do in Japan as in folding in when I press the fold in button. I guess I will have to wait until I get the mirrors and see what the switch looks like before I will ever understand this.
Posted By: Velocity Motors
Date Posted: May 26, 2004 at 8:29 PM
FourthGenHatch wrote:
When I hook mine up I want them to work just like they do in Japan as in folding in when I press the fold in button. I guess I will have to wait until I get the mirrors and see what the switch looks like before I will ever understand this.
Do you have the control module for the mirrors ? If so you don't need the wiring for the relays. The relays will just replace the module function. ------------- Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: FourthGenHatch
Date Posted: May 27, 2004 at 7:13 AM
The guy who sold them to me said no relay is included, so I need to rig up something I guess.
Posted By: dannylee312
Date Posted: May 27, 2004 at 12:39 PM
I have now resorted to not using any relays whatsoever, I am just taking diodes and a 12v 20amp DPDT toggle switch and rigging it up another way!!!!....So what I won't get to use my JDM stwich, no biggie!!! A small price to pay to use the mirrors.
Posted By: FourthGenHatch
Date Posted: May 27, 2004 at 6:18 PM
Ok I got them today and I see that the fold button does not lock in like I thought it would when you press it in. So in theory to get them to work you would have to build something that when you press it once it locks a relay one way, and when you press it again it locks it the other way.
If no one has an idea how to get that to work than I'm just going to rig up a toggle that has 4 prongs so i can just swap the negs and positives so it folds when i press it one way and unfolds when i do it the other way.
Posted By: dannylee312
Date Posted: May 28, 2004 at 8:19 AM
FourthGenHatch, Thats exactly what I did, I bought a 12v 20amp DPDT toggle switch from radio shack (make sure you get the one that doesn't stick; they carry 2, and they both say momentary, and one should be latching and one should travel right back to the middle/off when you let go). The switch has 6 prongs. I hope that this helps, I will try to post a diagram later on.
Posted By: dannylee312
Date Posted: May 28, 2004 at 9:07 AM
Here it is.....I used Red and Green wires, this may be different in your car. Special thanks again to JIF for the great help in the diagram!! 
Posted By: FourthGenHatch
Date Posted: May 28, 2004 at 7:39 PM
That diagram helps a lot, I will use that to hook them up.
Posted By: FourthGenHatch
Date Posted: May 29, 2004 at 7:05 PM
I got a switch just like you had except its only a 6amp switch because all the other switches were huge and it would be hard to integrate into the dash. I got 2 regular relays because they are 30amp I figured I could run the power to those or something. Anyone had an idea how I can hook this up using relays to basically hold the power so I don't fry the switch.
Posted By: dannylee312
Date Posted: May 29, 2004 at 10:26 PM
I was told that I did not need any sort of diodes, relays, or resistors. I just wired in a 20amp fuse to the +12v. FYI-the RadioShack part number for that switch is: 275-709. It works great with insulated female crimp-on connectors.
Posted By: FourthGenHatch
Date Posted: May 30, 2004 at 11:54 AM
I figured out how it can be wired up with 2 relays and it was actually pretty simple. Im going to install them today and I'll post up a diagram on here later.
Posted By: dannylee312
Date Posted: May 30, 2004 at 8:50 PM
cool!!! I'll be waiting for it later on!
Posted By: FourthGenHatch
Date Posted: May 31, 2004 at 6:10 PM
Posted By: dannylee312
Date Posted: June 01, 2004 at 9:32 AM
Excellent, now I will have to disassemble mine, and then thry this out!! How does your switch work the mirrors?? Thanks in advance.
Posted By: dannylee312
Date Posted: June 01, 2004 at 9:34 AM
Also, what type of switch did you use??
Posted By: FourthGenHatch
Date Posted: June 01, 2004 at 3:00 PM
I used the same kind of switch you used, the 6 prong momentary contact one except I just only hooked it to one half of the switch. All you need is a 3 prong one but its hard to find such a variety of switches...
Posted By: dannylee312
Date Posted: June 01, 2004 at 3:19 PM
Thanks bro.....looks really nice.
Posted By: FourthGenHatch
Date Posted: June 01, 2004 at 8:17 PM
Saturday night I was trying to figure out how to make a circuit with 2 relays that would work and I was positive I could with perhaps one being negative and one positive or something. Than Sunday morning I wake up and first thing I do is pick up a piece of paper and jot down this idea I had and it turned out it worked.
Posted By: andyhoiho
Date Posted: June 06, 2004 at 9:12 PM
it's useful !!!
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