2003 Tacoma Rear diff lock All the time

Hey all so I'm trying to see if I can make my Rear Diff lock activate even if the transfer care is not in 4Low. Form my understanding It will only activate in 4low and I was wondering if I could make it activate in 4High or 2High. I found a Diagram of the circuit for the Diff lock system and I was wondering if my theory would work or if anyone out there has done this before? So my theory is that if I take the 2 Green wires and make them connect then it would trick the computer into thinking the car was in 4Low all of the time. Would this make the transfer case think it was in 4Low all of the time too or just the Rear Diff? And if it did make the transferase think it was in 4Low all of the time would it actually be in 4Low all of the time? Any advice is appreciated thanks again.

 

Search "Grey wire mod". You should be able to find instructions dating back more than a decade ago. It allows e locker engagement in 2wd, 4lo and 4hi.

 

GR= Grey

And there isn’t 2 of them, only one. The diagram shows 2 for 2 different vehicle types. All you have to do is ground that wire and you can do what you describe. This is the grey wire mod.

 

Awesome! Thanks for letting me know I'm new to the Tacoma world so I didn't know that that is what it was called