Hi, I have a 95 Nissan Pathfinder SE V6, 4wd Automatic. I have a problem with the ABS light coming on when I make a hard right turn and really get on the throttle in 2wd, but when I turn left it turns back off...searching for the fix, I'm pretty sure that it's just a fluke/a sensor is going bad.
In my 95 Pathy SE V6, I have a manual-shifting transfer case, on the end of an automatic transmission with Overdrive. I also have ABS. with the ABS light on or off, I can still use 4wdH and 4wdL. my idiot light for 4wd blinked out a couple oil changes ago...another thing on my list.
so, a couple things that might be needed to know:
1: Do you have a manual-shifting transfer case, or a push-button (which shouldn't be in a Nissan.)?
2: are you sure that its not shifing into 4H? or is it just that the idiot light is not turning on? How about 4L? (A great way to test this is to find a flat area of loose sand (bring a buddy with a tow chain) park the truck, dig out about 6 inches deep behind the tires, back the truck in, shift to 4wd...and purposely get stuck...but not too stuck! that way you can see what tires are pulling and whatnot. it's safer than doing a 4wd test on pavement or mud, because pavement will rip everything out if you turn, and mud just covers everything up and can get you in a fix pretty fast.)
3: have you checked the computer codes for the abs? have you used a computer tuner?
hope this helps
-owner of The Dragonfly (95 Nissan Pathfinder SE V6 4WD)