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Unread 09-19-2013, 09:48 AM   #1
Astennis1
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Rubicon Locker switches

I have searched for a while to see if I can find a write up, or if someone has done this and I have come up short. I am doing research to figure out how difficult it is to bypass the onboard cpu and make my own switches for the rubi lockers. My plan would be to make a master switch that would have to be closed to use the lockers which would make an accidental engage unlikely. I have heard that the locker uses a momentary signal. My main questions are: Is this a specified pulse duration? Is this a motor that needs a flip in polarity to engage/disengage? Does the locker output its status? I can design a microcontroller to do the logic, but I don't feel this needs to be this complex. Any takers?

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Unread 09-19-2013, 01:15 PM   #2
RockyClymer
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It operates with a simple solenoid with 13.8 VDC on not, spring return as I recall. You could wire them totally independent of the PCM relay operated with master switch and appropriate fuse. May throw a code when PCM cannot find lockers but you could ignore it.
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Unread 09-19-2013, 01:29 PM   #3
ronjenx
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A switch in the locker relay ground wire will actuate the locker, completely preserving the OEM circuitry.

Splice a switch to ground on the violet/light green wire on the rear locker relay, and a switch on the violet/dark blue wire on the front locker relay. You don't bypass the OEM ground wire. You simply tap your wire onto it. That way, the OEM switches will still operate the locker.

What it amounts to is, when you close your added switch, it grounds the relay coil, closes the relay contacts, and sends power to the locker.

The only thing you will see that's abnormal is the blinking locker light when you use your added switch to lock the axle.
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Unread 09-19-2013, 02:14 PM   #4
Astennis1
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Okay I think I get at what you are saying. I tried to draw how I picture this, to make sure I got it right. Don't hate on my paint skills ha...

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Unread 09-19-2013, 02:41 PM   #5
ronjenx
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Quote:
Originally Posted by Astennis1 View Post
Okay I think I get at what you are saying. I tried to draw how I picture this, to make sure I got it right. Don't hate on my paint skills ha...
Kind of hard to tell, but I don't think that's it.

The violet wire from the relay goes back to the computer. The computer connects it to ground when you select LOCK with the OEM switch. This allows 12 volts to flow through the relay coil.
Your new wire will tap onto the violet wire, go to your new switch in the cab, and go to ground when you close your switch. This will also connect the violet wire to ground, (instead of the computer doing it), allowing 12 volts to flow through the relay coil. The relay will close, sending power to the locker.

It's more like this: (Copy the pic if you want it. I'll take it out of my photobucket later.)



Note to our readers:
Locking one or both axles at inappropriate times can cause the Jeep to become difficult or impossible to control.
If you don't know when not to lock, this mod is not for you.
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Unread 09-19-2013, 02:55 PM   #6
RockyClymer
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Wow, a lot simpler than my suggestion.
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Unread 09-20-2013, 12:03 AM   #7
djm
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Just curious - why would you want or need to do this ?


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Unread 09-20-2013, 06:17 AM   #8
mello
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Just curious - why would you want or need to do this ? Dan
you can lock your rear in 2wd which comes in handy on a slick boat ramp. If you need some good wheel speed to clean out tires you can lock them in 4 high.
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Unread 09-20-2013, 11:43 PM   #9
Filthy-Beast
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when I was playing in big sand dunes it would have been nice to be able to lock in 4-hi,
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Unread 09-21-2013, 12:54 AM   #10
HllywdJeep
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Don't some of the programmers make it possible to use the lockers when not in 4low? Not the cheapest route...
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Unread 09-21-2013, 12:55 AM   #11
SubAtomicGenius
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You wife can also switch it on the highway when she's going to get groceries so be careful!

"Wonder what this does??? -click- BBAAAAANNNGGGGGGG!!!! CRASH!!!!
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Unread 09-21-2013, 06:13 AM   #12
mello
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My bypass switch is on my a pillar and I have it running through a weather pack connector in cab before it runs through fire wall. I keep that weather pack connector disconnected except when going off road so there is no accidental engagements. Also if I ever have to remove dash I will not have to cut the wiring.
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Unread 09-21-2013, 08:44 AM   #13
Wonk
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When I put ARBs in my TJ I put the switches in the overhead console I built with the feed for both run through a toggle switch with a safety cover on it (arming switch). The main reason for this was because I would let my son drive it to school every now and then on special occasions. The arming switch was there to keep one of his buddies from engaging a locker while cruising down the highway at 60, as in "hey what's this do" click. My son knew what they where for and how to use them.
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Unread 09-21-2013, 08:54 AM   #14
Neo1130
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I still don't understand... People are driving around in 4lo constantly?! The lockers are only available in 4lo. Even with a tuner, you have to have the tuner plugged into the vehicle in order to use it in any other mode. If you hit the locker switch, it will never engage, unless in 4lo... Now what I WOULD like... Tricking the vehicle into thinking it's in 4lo all the time so I can hit the locker switch whenever...
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Unread 09-21-2013, 09:04 AM   #15
mello
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You are not tricking the module to engage with the bypass you are engaging it manually with a switch. My tuner has the 4 high mode and it does not have to be plugged once it has programmed to do so.
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