Question about 1990 Ford Bronco

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Ok so my head lights work fine in my fs bronco until i click on the high beams the head lights shut off all together?? any thoughts?

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The dimmer switch is bad and needs to be replaced.

Posted on Sep 27, 2009

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High beam do not work at all low beam works fine when switched to high beam no lights at all


I suggest you first check the bulbs. It isn't unusual that both bulbs fail together.
If the bulbs are ok refer to the vehicle handbook and check the fuse(s).

If those are ok it is time to move onto the supply and check it through with the aid of a wiring diagram. The fault could be a relay or the dipswitch, wiring, connections...

It is worth noting on later vehicles electrical equipment is not switched on with the light, wiper, heater switches but these merely instruct a local black box to send a signal to other black boxes to perform the desired function. In the case of problems a dedicated scan tool will be required for diagnosis.

Aug 10, 2015 | Cars & Trucks

1 Answer

High beam headlights stuck on replaced switch same problem


It can be issue with headlight switch,but as its already been replaced.Try disconnecting high beam headlight wiring from headlight assembly and reconnect direct external wire from headlight switch to headlight assembly,then by switch see if headlight is getting off and turning on or not.
See below related help links,similar to your issue.Click the link below:----
Only high beams work but head lights not working on Ford F350?

http://howtobyme.blogspot.com/2011/11/only-high-beams-work-but-head-lights.html

----------------
Only high beams working on GMC Savana?---------- High beams stopped working but headlights still work? http://howtobyme.blogspot.com/2011/11/highbeams-stopped-working-but.html
---------- Working of Headlight switch? ----------

Both headlight bulbs blow together?
----------

Car headlight bulbs don't last long?

------------ Only one head light works on 2001 Dodge Caravan? http://howtobyme.blogspot.com/2011/11/only-one-head-light-works-on-2001-dodge.html

----------
these will help.
Thanks.

Nov 06, 2012 | 2007 Chevrolet Tahoe

1 Answer

97 suzuki alto main beam on head lights not working but high beam fine


If there is only one headlight bulb you have to replace the whole bulb. Some cars have a separate high and low beam, some are together. Low beams usually burn out first since they get used more often and unfortunately have to be replaced even if the high beam still works. Hope that is helpful!

Jan 22, 2011 | Suzuki Aerio Cars & Trucks

2 Answers

2005 impala lowbeams do not work at all. high beams, turn signals, and taillights are fine. i cut the negative and grounded it on the car and now the headlights are on but will not shut off unless i take...


ok put the ground back were you cut it and remove bezel near head light switch test powers in and out with 12 volt test light on low beam and high beam you may just have a bad head light switch make sure you have headlight power coming out of the swicth for low beams.

Mar 20, 2010 | 2005 Chevrolet Impala

1 Answer

Head lights won't work. drl and high beams work


Check for sure, that both bulbs haven't somehow (unlikely, I know) blown out. If they are both fine, it could be the headlight switch. Another possibility, there was a recall recently for the headlights due to the splices not staying together, causing the regular headlights to not function. This recall affected over 90,0000 Suzukis of different model years. Hope this helps, sorry I couldn't give you anything concrete

Jan 01, 2010 | 2006 Suzuki Forenza

1 Answer

No low beams bulbs are ok fuses look good


There may be a relay that operates the low beam lights, check the owners manual to see if there is a relay, you should be able to hear it go "click" if there is one.

Dec 26, 2009 | 2006 Hyundai Sonata

2 Answers

One high beam works one doesn't, gauge cluster does not light up


you say you replaced both bulbs, you mean right and left or both the high beam and the low beam on left side?could be a bad ground for the left headlight. there should be some ground wires there near the headlight, LF corner under hood. without a wiring diagram here at home,I am not much help.

Sep 26, 2009 | 2000 Honda Accord

3 Answers

High-low beams not working


Check for headlight relay and fuse. Some cars have separate circuits for head light flasher and normal high/low beam. From your description, I would suspect a bad connection to/from relay or relay itself.

Jul 07, 2009 | 2006 Hyundai Accent

4 Answers

Low beam headlights do not work, but high beam headlights do


Clyde,

I've been troubleshooting this same problem on a different vehicle this week, and I can give you the steps I'd take.

1. If both sides went out at the same time, the problem is *NOT* likely to be the bulbs.

2. Check the fuses to see if both low beam lights are on the same fuse. Many cars have one fuse for low beam and another for high beam, so both lights out at the same time typically means fuse blown.

3. If the headlights are OK and the fuses are OK, then the problem is *LIKELY* the headlight switch. In my case, AutoZone has one and it can be installed easily; but in your case, that may not be as simple.

Please post your findings or comments.

Jul 16, 2008 | 1991 Nissan Pickup

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