Headlights dim 1998 Ford Mustang-changed headlights to HD which lasted for about a year. So put the old LED's back in but low beams were very dim. Then one side stopped working so I replaced the wire kit to the light and it worked great for a day. Now one side works, high and low beam but dim. The other side only high beam works. What could be wrong.

SOURCE: no driving or high beam headlights

Hi,

To my knowledge a 2003 Toyota Camry uses a dual filament halogen bulb, either by Osram, Philips or Sylavania. If on the dashboard, the blue indicator lits when the switch is moved to bright or the passlight is engaged but no headlight, then it could jut be busted bulb (or part of it since you still have driving/low beam). In some cases, it could be the relay that supplies power direct to the bulb. At other times, it could be fuse(s) assigned to high beam. At certain instances, it could be also a loose, corroded or burned connector.

Corrective measure for your concern would be to check the 2 bulbs. This is performed by removing the rear covering (rubber or plastic cap) of the headlight assembly from the rear. The bulbs are held in place by a spring clip that needs to be unlatched from the base/holder. Carefully remove the bulb taking care not to touch the glass envelope. The filaments would be readily visible and cut/breaks would be apparent. If determined that one of the filaments (high beam) is open, replace the bulb(s).

If the bulbs prove to be OK, you need to work yourself backwards tracing the wiring harness. After the bulb, check the 3 prong connector for any corrosion or scorching/burnt marks; clean as maybe required. Next to check would be the relay that provides the +12VDC and then the fuse.

I doubt if the dashboard or steering wheel components involve with headlights may be at fault.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

SOURCE: DRL and High Beam do not work right on Honda Accord EX 1998

Some time back I found some data on a similar website suggesting that the Day Light Running circuit board, just under the steering column, developed cracks in some of the soldered joints. Your high beams should also be affected with loss of day light running lights.
Resoldering repaired the continuity of the circuits. Ours is now working quite reliably. Some of the defective areas developed slight brownish discoloration, that's how I was told to recognise the areas to be resoldered. Hope this will help you solve your problem.

SOURCE: 2008 Ford F-250 Low beams do not work. High beams are fine.

just remove all the connections as it could be malfunction in the switches and the wirings needs to be rechecked to make it proper.other option could be bad dimmer switch. You will need to replace the turn signal/ dimmer switch as an assembly.to replace you will need to disable the air bag, drop the column, pull the wheel

Colin Stickland

• 22516 Answers
• Posted on Mar 15, 2009

SOURCE: High and low beam Headlights on a 1998 ford

new switch or one from a junk yard??

Mike Butler

• 6674 Answers
• Posted on Mar 28, 2009

SOURCE: My low beams work on my headlights but my High beams wont come on

Take a look at this link regarding DRL system. I know it's not exact truck but most of it would apply to yours too. It should give you hints on what to test & how.
http://www.fordf150.net/howto/drl.php