Power Steering Pressure Switch
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2002 Nissan Xterra, 2002 Nissan Sentra, 2002 Nissan Quest, 2002 Nissan Pathfinder, and 2002 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
Turn ignition off. Disconnect power steering pressure switch harness connector. For locations, see Fig 1-Fig 8 . Start engine. Check continuity between switch terminals. If switch has only one terminal, check continuity between ground and switch terminal. Continuity should exist when steering wheel is being turned. Continuity should not exist when steering wheel is not being turned. Replace switch, if continuity is not as specified.