what would cause no headlights or high beams have running lights and i can flash the highbeams


Asked by Oct 02, 2013 at 09:13 PM about the 2000 Ford F-350 Super Duty Lariat Crew Cab LB 4WD

Question type: Maintenance & Repair

i have a 2000 f350 i turn on the headlights they wont come on the high beams wont come on either  i can flash the hi beams by pulling back on the dimmer swtch i have marker lights what the heck is goin on anybody run across this before.??????

10 Answers


Check your fuses first. Dose you truck have daytime running lights(DRL)?

4 of 4 people found this helpful.

fuses all check out an it does not have drl or auto headlight switch iam leaning towards the dimmer but not sure i dont want to throw parts at it

1 of 1 people found this helpful.

Power for low and high beams goes through the headlight and dimmer switch. Flash-to-pass, goes around the headlight switch, straight to the dimmer. It still can be either part. With the headlight switch in the "on" position, check for power at the Red w/yellow stripe wire at the headlight switch. If you have power there, it's a bad dimmer switch. If there is no power, then it's the headlight switch.

6 of 6 people found this helpful.

thank you i will give it a shot

1 of 1 people found this helpful.

Hey, I have the same problem. I've replaced the dimmer switch and the head light switch. I have new bulbs, I've done the pigtail to the headlights but still doesn't work. I've checked all of my fusses as well. Can anyone help? Thank you!

5 of 5 people found this helpful.

Hey jcks did you find a solution to your problem. I need help as well

4 of 4 people found this helpful.

Same problem here with 02 F350 7.3 Diesel. Replaced lamps, dimmer. My problem is a short in the steering column, as I could get them to come back on by moving it. Now completely dead and am searching through the wiring to find the short.

2 of 2 people found this helpful.

High beam/wiper assy on colume $50 part on amazon

Did anyone figure this out?


Yep! My issue was the wire harness at twelve o'clock behind the steering wheel on the steering column. I recall just two phillips bolts and unscrewing the column adjustment lever to remove the two plastic covers. One of the leads in the harness wasn't making a clean connection. I sanded them all down, disconnected and reconnected the harness several times to "re-seat" it. No problems since.

1 of 1 people found this helpful.

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