Austin's E-Lock Mod:
E-Lock Locked in 2WD & 4HI & 4LO
Nissan Titan 4x4 with OEM Electronic Locking Differential
Page 1 Page 2 Page 3 Page 4 Page 5 Wiring Diagram
If you have any questions, direct them to Austin on Nissan Titan Forum.
Having failed at tricking the control units into thinking conditions are met to
lock the rear diff,
I bypassed the control units entirely – I wired 12volt power directly to the
diff lock solenoid.
Here a picture where all the stuff is:

Here are a couple wiring diagrams:


Here’s a pin explanation:

+12volts is applied on terminal 12, with terminal 11 being switched ground –
power to the diff
solenoid is controlled by switching the ground at terminal 11. I’m betting the
diff control unit
can isolate the +12volts on terminal 12, so I wanted to switch both power and
ground.
Page 1 Page 2 Page 3 Page 4 Page 5 Wiring Diagram
If you have any questions, direct them to Austin on Nissan Titan Forum.