2003 pathfinder wheel indicator lights flashing. No 4wd

[Nbguide]

Hi guys. As said the front two lights and orange center light flash constantly while in 2wd. When switching to 4wd the lights lock solid but no 4wd. Interesting part. When I step on gas hard in 4wd the wheel indicator lights go out then the 4wd light comes on and it locks in. Any ideas ?

[fleurys]

Start by changing the fluid in your transfer case.. I am willing to bet that it is grey or even black.... Put back new AT transmission oil in it and try again...

[Nbguide]

At fluid not gear oil?

[fleurys]

exactly.. your atx14a transfer case has a cluth hub and drum. That is what enables the auto mode. It needs transmission oil in it...the older model of pathinder R50 (1996-2000) had the tx10A transfer case which ran with gear oil.