PROBLEM: Both High and lo Beam on
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Freshman User
Joined: Mar 2020
Posts: 28
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PROBLEM: Both High and lo Beam on
Hey Guys & Gals,
I am having a problem with my F250 headlights both high and lo beam being on at the same time regardless of high beam switch position. No change whatsoever when trying to switch. Any ideas?
I am having a problem with my F250 headlights both high and lo beam being on at the same time regardless of high beam switch position. No change whatsoever when trying to switch. Any ideas?
Fleet Mechanic
Joined: May 2018
Posts: 1,765
Likes: 502
Any modifications to the truck's lighting? Wondering if you have an aftermarket drop in LED kit, aftermarket headlights or something else tapped into the lighting wires. If so, start there which might mean going back to stock lights. If not, I'd guess the switch in the steering column is malfunctioning. Short term, you should be able to pull the high beam fuse so you're only left with low beams.
Postmaster
Joined: Jan 2005
Posts: 4,424
Likes: 12
From: BC Canada
Need to tell us year, options, trim level and what other things have been done, could be the high beam stock, could be the auto high beams, could be the sensors for high beam behind the windshield top centre, could be a damaged wire.....
If you haven't touched anything, clearly dealer first, especially if you have warrenty.
If you haven't touched anything, clearly dealer first, especially if you have warrenty.
Fleet Owner
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
Well H13 bulbs tend to explode if power is applied to both filaments. So your saying all four lights run low and high at the same time? There is four bulbs in use on these trucks not two.
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