As said before I connected the wires & then switched on the Diff Lock , there was a click in Diff ECU which is beside glove aptt, the Diff Lock LED started blinking in console, the rear wheels diff locked & i could feel it when crawling, it was doing so when in H4 & L4 mode only.
Next I Jacked up the rear wheels & while neutral & in H4, L4 I again switched on the switch & manually rotated the wheels they were as Naomi said.
Now my question here is
Is it OK if the LED is blinking, as mechanically I feel the Diff Lock system is working.
BTW I have put a connector in b/w the two wires so that any one else if driving accidently donot switch it on & mess up the differential.
Also here is a clean picture as i promised before
Also the LED which is blinking when engaged