Low beam prob on plow light

low beam won't light Richard, faulty bulb socket module or wires, check and repair.
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How to Fix Low Beam Headlight

Low beam headlights out High beam working

High beams ok but not low beam one side only TDIClub Forums

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Plz check and follow the wiring to low beam to ensure they are making a good connection. Also, you may want to pull other low beam bulb and put in place of this one to ensure that it is not the bulb. Hope this helps.

This is a legitimate problem with light bulbs on Chrysler products.. The best resolution is to purchase a used module from a salvage yard to replace yours which is very much cheaper to do

you have a wiring problem, look up cavalier headlight wiring on the internet, there is a harness connector under the battery that sometimes goes bad, or the wires are broken inside the insulation, usually in the front harness, the head lights hi and daytime lights are controlled through the ecm and low beam is on a separate circuit, i have also found problems in the switch or the drl module in the fuse box, any mor questions mail me

There could be a fuse for each low beam light either under the hood or under the dash. If not, then prob both low beams are bad.

If you have daytime run lights, the following may be of help.

There is a daytime running light module that controls both low beams and the daytime running lights. The low beam bulbs may be OK. The high beams will work fine as they are not controlled through the module.

It may be possible to disable the daytime run lights by cutting the yellow wire going into the module and then connecting it to ground. Tape off the other end.

This will help. Thanks please keep updated.please do rate the solution positively .thank you for using fixya

first thing i would check is the wiring were the plow wiring is spliced in at this is most likly the culprate. or you may have a bad multi function switch in the steering column

Headlights in my '03 Jeep Cherokee are through a relay, both both light's are on the same relay I believe.

I would be suspect of any added modules which drive the headlights. Hopefully, they didn't "splice" in, but used one with factory connectors, so you can remove the module and reconnect the connectors as the vehicle was shipped from the factory.

When it's all said and done, you really need a wiring diagram for the vehicle. I can get one for my Jeep at the local repository library. Don't know about your truck. You may be able to find a diagram through some hard searching on the www.

Let me know if you need someone to bounce thoughts off of.

Hi,
It has been because the lamp bulb or halogen lamp module has reached the end of its serviceable life, not because of any wiring problems. Low beam burns out first because it is on the most. If low beam is lost simultaneously in both headlights, I would check fuse first, then the headlight switch. If low beam is lost on one side only, it is almost always going to be due to the bulb or lamp module needing to be replaced. In that case, replace them in both headlights because the other one will be going kaput in short order, as well.
Most like the low beam filiment is bad but the high beam filiment is still good, try replacing bulb. If replacing bulb does not fix problem then you probably have voltage problems and should check the voltage reading and the plug.
OR
isolate the wire that comes from the headlight switch to the headlamp bulbs for low beam and check to see if there is a short in the wire. You can find this wire by using a test light turn on the key and get a good ground with the test light poke the wire and see if the test light illunimates with the headlight switch on.
check the wires, and check the fuse for your lowbeams. could of blown a fuse on your lows, but your highs will still work.

The fuse box is located in the engine compartment,on the driver's side. Has thumb-screw retained cover.
Thanks for contacting fixya.com

first check the wire make sure low beam power is there if there is power check your low beam fuse if fuse is good check the rely and if that good check head light module make its putting out power and if all that is goo then change you bulb it may be a double filament buld and the low beam side is blown