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.
The Diff Lock Control Unit is positioned right between the two
rear seats -
so, if you want access to it, you need to remove both rear seats. There is
no need to do this, though - there is an easier place to do the wiring.

Here's the harness connector at the Diff Lock Control Unit. Note the two blue
wires
on terminals 1 & 2 of the connector (upper right). The manual labels them as
color
"R/B" which must mean royal blue. Remember that blue color.

The best place to do the wiring is in the driver's kick panel. There is only one
wiring
loom which runs to the rear of the truck. There is also a nice place to house
the relay -
inside the white plastic housing, right next to the little brown connector.
Good'n'protected.

Note the two smaller blue wires you can see in this photo - they are not the
ones you want
to cut. If you see two colors of blue, go with the darker blue. Royal blue vs.
sky blue.

When you pull the tape off that loom, locate the yellow, violet, black and royal
blue wires.
They're all a bit larger than most of the other wires - 16 awg vs 18 awg.
Separate
them from the rest and follow the wiring diagram in the first post above.

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.