Nearly all vehicle headlights (with a single lamp on each side) have three wires: Vehicle Ground (usually black) and one wire for the Low beam and one for the High beam.
which ngk spark plugs is recomemded for the b14 nissan sunny
wires from the starter to the harness are touching
Coolant temp sensors are typically somewhere on the intake or on the cylinder heads. They have no more than 2 wires going to them, most of the time only one.
its screwed into your transmission,loosen both wires and unscrew part and screw new one in and connect wires.
Start with checking the battery terminals for corrosion, then the wires going to the starter. Be sure everything is clean and tight. Also have the battery checked
TTake them off ONE AT A TIME. If this is not enough information you need to take it to a garage.
I think I had a similar problem with my 1991 Sentra. When the headlights were on, one of my wouldn't work. There turned out to be a loose connection with one of the wires.
I don't know about your car, but generally the darker wire is the ground, and the lighter one is the positive.
The '93 sentra's use generally composite headlights. Did just one headlight go out? If so it would not be the headlight relay located in the engine compartment, as both lights would be out. With the hood up, the backside of your troubled headlight should have a plastic round locking type fastener the wires go into with the bulb and socket. Undo the outer plastic ring to disconnect the bulb from the headlight, then unsnap the tab that the bulb and socket use to separate them, inspect the bulb filaments for visible signs of breakage, get a second opinion from your auto parts store if you are unable to tell. More than likely it's the bulb that has gone out.
To replace the headlight motor on a 240 SX Nissan, unhook the positive cable on the battery first. Then take a picture of the headlight motor before taking the old one off. Remove the wires and screws holding the other motor in place, then place in the new motor, tighten the screws, and hook up the wires while looking at the picture. Connect the battery cable.
My 96 Nissan sentra has 6.5" speakers. i just replaced them last week. i don't know how much watts it can take. it depends on the speakers.. not on the car. Try to use the Nissan speaker adapters plugs so you don't need to cut wires and mess up the electric system, you can get those from eBay or amazon.
2001 Nissan sentra was rear ended, taken to a poor repair shop, where they rewired evap system at rear of car. check engine light on constantly. found multiple hot wires to purge valve.both wires to valve powered up and i believe one ishould be grounded