Hey there. To be completely honest my friend, you might need to go back to the basics and purchase a detailed wiring schematic for this vehicle to determine where the electrical fault exists. Quite often when an electrical fault like this exists, the best solution is to trace every connection to see where the fault is triggered. Most of the time, it’s an exposed wire or ground issue that causes the circuit from the switch to the lights to fail. If you need help here, one of our professional mechanics can come to your location and complete an electrical problems inspection.
How to Identify and Fix Common car Problems ?
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The likely cause is a fuse, headlight relay, headlight switch, dimmer switch or a wiring fault. About the only cause that is an easy fix is a blown fuse. Consult your owner`s manual to locate the main fuse for the headlight circuit and replace that fuse with one having the same amp rating.
There is a good chance that your ballast is the cause of your lighting problems if your headlights are dim, changing colors, buzzing, or flicker. When inspecting it for potential issues, any burn marks, leaking oils, or swollen casing are indicators of failure.
A bad headlight relay is among the more common reasons we see for low beam headlights not working while the high beams do. You see, the low and high beams each have their own relay, which is essentially an electrical switch. Like fuses, sometimes relays go bad.
Bad Relays If a bad headlight relay is a reason your headlights won`t turn off, the fix is to replace the relay. This is a little easier to check since there`s a chance that multiple circuits may use the exact same type of relay.
It will most likely be under the hood of your vehicle where your main fuse panel is located. However, it may be located inside the cab of the vehicle if you vehicle is equipped with an interior fuse box.
Check the Ballast with a Multimeter Insert one probe into the wire connector while holding the white wires together. Touch the other probe to the ends of yellow, red, and blue wires coming from the ballast. Some might exclude the yellow. If the ballast doesn`t cause the needle to move, you know it needs to be replaced.
Stand under the light or a place close to the light and point your cell phone camera at the light. If you can see some strong dark strips flickering in your camera, it must be a magnetic ballast based light. Otherwise it should be an electronic ballast based light.
Locate the plastic tabs that hold the lens to the backing around the edges of your headlight. Lift each tab up with your fingers to separate the 2 pieces of your headlight. If you have trouble peeling them apart by hand, position a pry bar or flathead screwdriver under the tab and pry it up.
All the electrical systems in your car, including the headlights, are protected with fuses. These are designed to `blow` and break the circuit if too much power comes through them.
Faulty switch: The switch itself may be faulty and not able to properly turn off the circuit that controls the lights. Wiring issue: There could be an issue with the wiring, such as a short circuit or a loose connection, that is allowing electricity to flow to the lights even when the switch is off.
Lasting Light. If the car interior light simply won`t turn off, then check the switch. It may have gotten bumped accidentally by a passenger, valet or car wash employee. If the switch is in the “door” or “off” position and your interior light still stays on, then you should consult a mechanic.
Depending on how your headlight circuit is set up, there may be one fuse or multiple fuses for the headlights. If you find a blown fuse, then replacing it may fix the problem. When replacing a blown headlight fuse, it`s important to use a new one with the same amperage rating.
Causes of Ballast Failure
When it`s too hot or too cold, the ballast can burn or fail to start your lamps at all. Heat combined with prolonged condensation inside an electronic ballast can cause corrosion. Some people may suggest removing the parts of the ballast casing and cleaning the electrical board.
Without a ballast, a lamp or a bulb will rapidly increase its current draw and it can become uncontrollable as well. When a ballast is present in a lamp, the power becomes stable, and even if such lamps are connected to high power sources, the ballast will regulate the energy and avoid the current rise.
According to the Certified Ballast Manufacturers Association, the average magnetic ballast lasts about 75,000 hours, or 12 to 15 years with normal use. The optimum economic life of a fluorescent lighting system with magnetic ballasts is usually about 15 years.
Do LED Lights Need Ballasts? An LED light does not require a ballast because it uses a component called a “driver” to regulate the power going into the bulb.
Lamps will have a part number and specification on them that will help you determine the name (CF for “Compact Fluorescent” or F for “Fluorescent”), shape (T8, T12, etc.), and wattage. For example, an F32T8 is a 32 watt Fluorescent Tubular Lamp. Every ballast will tell you how many of a certain type of lamp it can run.
Always disconnect the battery when changing a blown headlight bulb. Headlight bulbs are connected to your vehicle`s electrical system. They`ll pull power from the battery while the alternator recharges the battery.
About headlight switches:
In most cases, the headlight switch will control several other functions. Depending on your car, the headlight switch could control the headlights, high beam lights, low beam lights, park lights, indicators / turn signals and fog lights.
As you stand in the front of the car, have the assistant turn the headlights off. Next, put the dark cloth or cardboard over one headlight, and have the assistant turn the headlights on. Find the adjusting screw and turn the screws slowly clockwise to raise the height of the lights or counterclockwise to lower them.
Unlike high beam headlights, these point down at an angle to better illuminate the road. That`s why low beams are referred to as “dipped beam” headlights in some parts of the world.
Hidden headlamps, also commonly known as pop-up headlamps, pop-up headlights, flip-eye headlamps, or hideaway headlights, are a form of automotive lighting and an automotive styling feature that conceals an automobile`s headlamps when they are not in use.
Where is the Headlight relay located? You can find the Headlight relay in the electrical distribution unit of the engine block. In case you need support locating the relay, refer to your owner`s manual.