HELP!! REAR DIFF LOCK SWITCH!!

No it’s working I plugged it into my light bar and other things and it works like it should. You don’t happen to have a picture of when you hooked up your fog light with that switch do you? Thanks!

 

The fog light switch is negatively switched whereas the diff lock switch is positively switched; therefore the LED will not have any voltage present to light up the switch. You'll have to wire it up independent of the OEM circuit if you want the indicator light to function

 

OK thanks again for all your help!! My DIff switch works perfectly. Wired that thing up exactly like you said. As for the fog light It now makes sense why I can’t get that top LED to light up. Thanks again you’re super knowledgeable

 

No problem, glad I could help!

 

So I need some help @6 gearT444E if you're still around...

I purchased a dual locker switch to wire my new front locker and existing rear OEM locker to, similar to what the OP in this thread did, but with the addition of a front locker and dual switch. I wired everything as shown below - both lockers function as expected, and switches illuminate as expected. I've got a very odd conundrum that I can't seem to quite wrap my head around.

With the headlights in the on position, my trucks ignition will not turn off, regardless of the key being in the ignition or not. If the truck is off with no key in it, and I flip the headlights on, the trucks ignition comes on. Its not quite full accessory mode, but it acts as if the key is in the 1st position if you were to insert and rotate the key. If the headlights are on and I turn the truck off and remove the key, the ignition remains on until I turn the headlights off (that's kind of redundant to my first explanation but just want to make sure its clear). If this doesn't make sense, let me know and I'll try to do a better job explaining.

When I unplug the switch from the harness, the issue disappears. I haven't yet tried it with the factory switch, I plan on doing that when I get home from a work trip with some jumper wires since I've already wired the new switches harness to the OEM harness. Figured I would dig into it a big first before I get home, to figure out what could be the issue.

CH4X4 Dual Switch Harness


OEM Rear Locker Harness (stolen from OP)


Eaton E-Locker Wiring Harness


Eaton E-Locker Wiring Harness Diagram


This is how I wired everything referencing the photos above in addition to your guidance to the OP:

CH4x4 Harness -----> OEM Locker Harness

(1) Blue -----> Eaton front locker signal circuit, yellow wire
(2) Green -----> Red/Black (4)
(3) Black -----> Green/White (2)
(4) Yellow -----> Green (1)
(5) Red -----> Light Green (3)

As far as the locker goes, I wired the black wire to a ground bus, the 12v(+) wire direct to the battery, and as shown above, the yellow wire (signal circuit) to the Blue wire on the CH4x4 Harness. Im sure this goes without saying, but I did not use the switch that came with the locker.

And this is my switch fully wired that I am having the aforementioned issue with.


Any suggestions on what's going on? Anything I connected incorrectly? Just so weird considering both lockers function as expected...

 

Im not sure exactly but what I immediately notice is that the ch4x4 switch wire color to terminal layout doesn’t match your picture. Not sure if that’s an issue or not. Somewhere you are getting a backfeed into your ignition circuit from that harness.

 

Holy crap. You are so right - I didn’t even notice that! I just connected the colors via the diagram to the wires you guided OP to connect to…

I’ll have to email CH4x4 and see if that was intentional or not…

Just odd that everything works as expected, you’d imagine there would be more problems if it was wired incorrectly.

I should also mention that even removing the constant power from the diff has no change.

 

Looking at your circuit I believe it’s because the two CH circuit LEDs share a common ground and that is the switched/illuminating ones. Try connecting CH4x4 harness terminal 3 to chassis ground.

Cap the green/white wire. You will lose the OEM variable dimming but the lights will come on with the parking/headlights still.