Combination Switch
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 1990 Nissan Stanza, 1990 Nissan Sentra, 1990 Nissan Pulsar NX, 1990 Nissan Pickup, and 1990 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
Remove combination switch. See COMBINATION SWITCH R & I . Use ohmmeter to check continuity at switch terminals as switch is operated. See Fig 1 -5. Most switches (lights, wiper, etc.) can be removed from combination switch assembly.