The Nissan Pathfinder was originally compact SUVs and they are now mid-size SUVs. The first generation Pathfinder/Terrano platform is known as the WD21, introduced in 1986.
The following wiring diagram and electrical circuit/schematics apply for 1993 Nissan Truck Pathfinder D21 Series. Here you will find detail description, explanation, illustration of the entire electrical system and wiring diagram of the vehicle which covers following components/ parts/ electrical function: Harness Connector, Standardized Relays, Power Supply Routing (fuse, fusible link, and wiring diagram), Battery (how to handle battery and service data specification), Starting System, Charging System, Combination Switch, Headlamp (operation and schematics), Exterior Lamp (includes clearance, license, tail and stop, backup lamps and turn signal, combination flasher and bulb specification), Interior Lamp (illumination and interior lamp), Meter and Gauges, Warning Lamps and Chime, Wiper and Washer, Horn, Cigarette Lighter, Rear Window Defogger, Audio System (location of antenna, radio fuse check, element check and repair), Automatic Speed Control Device, Location of Electrical Units, Harness Layout and Super Multiple Junction (SMJ).
Find more information about 1993 Nissan Truck Pathfinder Wiring Diagram and Electrical Circuit here. (source: wikipedia.com, bebrs.pie-dabas.net).