What would cause both headlights to go out but the running lights work on a 1995 Chevy S-10 4X4 pick up?

1. What would cause both headlights to go out at the same time?
2. Can a blown fuse cause headlights to go out?
3. What are the symptoms of a bad headlight relay?
4. How much does it cost to replace a headlight relay switch?
5. Does each headlight have a fuse?
6. Where is the headlamp fuse located?
7. Where is the headlight relay?
8. How do you check a headlight switch?
9. What is a headlight module?
10. What does headlight relay do?
11. Why does my low beam keep going out?

What would cause both headlights to go out at the same time?

Most total headlight failures are caused by a bad component like a fuse, relay, or module. Wiring problems can also cause both headlights to stop working. ... The cause: A burned out bulb, or a problem with the high beam switch or relay. The fix: Replace the bulb, switch, or relay.

Can a blown fuse cause headlights to go out?

If a headlight fuse blows, it could cause the headlights to stop working. Most headlight systems are also designed with a relay that switches the power between low beam and high beam headlights. If this relay goes bad, it could allow power to the high beams, but not the low beams.

What are the symptoms of a bad headlight relay?

Headlights Don't Turn On

The most common sign of a bad headlight relay is headlights that don't work. A headlight relay will typically fail in the open position, preventing voltage from reaching the headlights. If the low beam relay fails, the low beams won't work.

How much does it cost to replace a headlight relay switch?

The average cost of replacing the headlight switch or the dimmer switch is in the range of $150-$250. Sometimes, accidents can damage the headlight and you are left with no option but to replace the entire assembly unit.

Does each headlight have a fuse?

Like all electrical systems, the headlights in your vehicle have a fuse in the circuit to prevent too much electricity from reaching the bulb. There will also be a headlight relay that switches power from the low beams to the high beams. If the fuse goes bad, you likely won't have any headlights at all.

Where is the headlamp fuse located?

The front of the dash panel has a fuse panel on it.

Where is the headlight relay?

Find the headlight relay closure:

Usually, it is under the hood of the car. The point where your fuse panel is most likely located. On the other hand, it may also be located inside the cab of the car, this would be the case if your car comes with an interior fuse box.

How do you check a headlight switch?

Touch the positive lead of the multimeter to the pin on the switch that receives power. Touch the negative lead of the multimeter to the pin to which the output wire for the parking lights connects. Turn the headlight switch to the parking light position and observe your meter.

What is a headlight module?

Headlight Module (a.k.a. Lighting Control Module)

The headlight module (a.k.a the lighting control module) controls various lighting system functions, including automatic headlamps, turn signal operation, and daytime running lamps.

What does headlight relay do?

When you turn on your headlights, that switch activates a relay. That relay, in turn, actually provides the electrical connection between your headlight bulbs and the battery. Fuses are also involved in order to provide a sacrificial failure point to protect the rest of the wiring.

Why does my low beam keep going out?

Any signs of condensation inside the headlight housing may indicate that water is leaking into the housing. Water and electricity don't mix and any condensation may cause a short circuit leading to failure. Also, any condensation coming in contact with a hot bulb may cause the bulb to break.