I have a 2001 xterra, and recently some intermittant problems arrises. Occasionally when the ignition switch is turned on, it is completely dead (no starter, no power to acc). Battery checks out OK, and then later the switch works fine, but I also notice that when the key is on and working, when I use the window switch, the seatbelt and brake icons flash on while operating the window switch. Also the brake light wants to remain on although all brake components appear OK. Obviously some sort of bad connection or short, but my question is: is this set of problems caused by a bad switch itself or by some sort of electrical component/wiring harness controlled by the switch being defective.

SOURCE: 2002 Nissan Xterra: not working are my running

dear fellow mostly u have a bad wire defect try to check all ur rear light wiring regards

SOURCE: Dash board, RPM, AC, Power window do not work and car is running

i would try a radiator, when it does start, take the positive battery cable off the battery, if the car dies, its your alternator\

SOURCE: My 1999 nissan altima won't start, no crank,not

If you look under the hood, there is a starter relay that might be the problem - but more common than that, - Do you have an alarm system of anykind? If so, It sounds alot like that is the problem, and they are notorious for causing "no start" problems as such - Unfortunatey, the wiring for these (even to just remove one) can be rather involved (as they often cut the starter wire to install an interrupt) so you may have to take it to an auto electric shop, or one that specializes in alarm systems - Also, dealers sometimes install special "electronic lot key systems" in all of their new cars, requiring that the "electronic key" must be present in the vehicle (along with the correct physical key) in order for it to start - I'd check for one of those systems as well - Hope that helps...