Can E-Locker ECU lock Front Only? (1 Viewer)

[Mudder]

So something like pulling the truck up onto a big rock, perhaps with another big rock near your rear tires that you don't want the rear tires on (for fear of tipping)? Do I sort of have the right idea?

Sometimes when you're crawling up things or in an off camber situation you can leave the front locked but you want an unlocked ass end so it doesn't try and pull you down hill.

 

[woody]

It's what I used for my air-locker ECU, nice to have the factory look and feel. I can share the design if you're interested.

Interested....working to set my 80 up with a front OR rear locker option now.

 

[landcrshr]

Interested....working to set my 80 up with a front OR rear locker option now.

Interested in the ECU for air lockers?
Or just the blinky function?

 

[woody]

Interested in the ECU for air lockers?
Or just the blinky function?

I've got factory e-lockers....blinky isn't needed, just a hack to allow front only.

 

[Tools R Us]

I've got factory e-lockers....blinky isn't needed, just a hack to allow front only.

Should be simple. At the locker switch, tap a wire into the power wire (blue/black stripe) one into the front locker wire (black/green stripe) wire these to a switch. When the switch is closed the front locker should lock, with the switch open, the rotary switch will work normally. Care is needed, this will be a great way to break front axle stuff!

 

[woody]

Should be simple. At the locker switch, tap a wire into the power wire (blue/black stripe) one into the front locker wire (black/green stripe) wire these to a switch. When the switch is closed the front locker should lock, with the switch open, the rotary switch will work normally. Care is needed, this will be a great way to break front axle stuff!

I run my buggy 99.9% of the time with the front locked, and the rear open....LOTS of experience Granted, the FZJ80 is 2x the weight, but I've learned that front locked/rear open make the majority of wheeling easier, since it eliminates the rear-locker push. Selectable, and knowing when to use, is the key.

My thought is to replace the dial with dual switches, one for each. I'll need to dig into the wiring a bit more.

 

[Dave 2000]

Adding to @Tools R Us breakage comment, the 80 front diff is not the strongest out there, in particular when in reverse.

Regards

Dave

 

[ThreeEyedBandit]

Should be simple. At the locker switch, tap a wire into the power wire (blue/black stripe) one into the front locker wire (black/green stripe) wire these to a switch. When the switch is closed the front locker should lock, with the switch open, the rotary switch will work normally. Care is needed, this will be a great way to break front axle stuff!

Incorrect, the locker ECU will not try to lock the front locker unless it also see a 'command' from the switch to lock the rear at the same time. See below from above...

Correct, but the locker ecu will not try and lock the front without trying to lock the rear at the same time. I.e. you cant 'tell' the dlcm to lock the front with out 'telling' it to lock the rear at the same time.


Input from switch -> action

RR -> Try locking rear
FR & RR -> Attempts to lock front and rear(does not care which locks first or what locks)
FR -> Trys to lock neither.

 

[Tools R Us]

Incorrect, the locker ECU will not try to lock the front locker unless it also see a 'command' from the switch to lock the rear at the same time. See below from above...

Then just use a switch to interrupt the output to the rear actuator motor. From the ECU, green and/or green/orange, those wires run behind the dead pedal, so easy place to get them. When the switch is open and the dial is turned to front, only the front will lock, close the switch to have both.

 

[nukegoat]

I run my buggy 99.9% of the time with the front locked, and the rear open....LOTS of experience Granted, the FZJ80 is 2x the weight, but I've learned that front locked/rear open make the majority of wheeling easier, since it eliminates the rear-locker push. Selectable, and knowing when to use, is the key.

My thought is to replace the dial with dual switches, one for each. I'll need to dig into the wiring a bit more.

This. and amen. Ive been saying this for years

 

[ThreeEyedBandit]

Then just use a switch to interrupt the output to the rear actuator motor. From the ECU, green and/or green/orange, those wires run behind the dead pedal, so easy place to get them. When the switch is open and the dial is turned to front, only the front will lock, close the switch to have both.

Yup, thats what I said in my original post. But probably didn't come out clearly. Just have to remember to 'reset' the Diff lock switch to off before trying the use the rear locker.

You could put a switch inline the rear diff lock motor wires to kill the power so it wont move, but then you'll need to remember what 'state' it is in if you want it to lock. Another complicating matter to that is the computer has a time out timer, if it doesn't get a 'motor has moved' switch input back from the diff it will kill the power to the motor til you unlock and retry...

 

[mudgudgeon]

My thought is to replace the dial with dual switches, one for each. I'll need to dig into the wiring a bit more.

If you're happy running dual switches, I think the simplest thing would be to eliminate the ECU.
There's guys running retrofitted e-lockers with simple wiring circuits, no ECU, no relays, just DPDT switches. There's info on this on mud you go digging for it.

I retrofitted e-lockers and made up relay control circuits so I could switch both independently. I used DPDT momentary switches and used the lock indicator switch to indicate when locked ONLY.

Care is needed, this will be a great way to break front axle stuff!

Yep, I busted a birf, and tore a tyre of the bead doing a front dig once.
I like being able to have the rear open for loose off camber stuff when there's the risk of the rear walking off a ledge etc

 

[Broski]

I run my buggy 99.9% of the time with the front locked, and the rear open....LOTS of experience Granted, the FZJ80 is 2x the weight, but I've learned that front locked/rear open make the majority of wheeling easier, since it eliminates the rear-locker push. Selectable, and knowing when to use, is the key.

My thought is to replace the dial with dual switches, one for each. I'll need to dig into the wiring a bit more.

Hi Woody
Did you every get this to work ? I really need to make this happen for the kind of wheeling we do

Thanks

 

[woody]

Hi Woody
Did you every get this to work ? I really need to make this happen for the kind of wheeling we do

Thanks

Never did...too many other projects

 

[Broski]

Never did...too many other projects

OK thanks