'91 F250 I.D.I. headlights not working

[mikeboggess]

Replaced headlight switch and headlight switch connector (fried). Now power to brown white wire when there was before. Any ideas will be appreciated.

 

[79jasper]

Check fuses? https://www.autogenius.info/ford-f250-1987-1991-fuse-box-diagram/amp/


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[Scotty4]

@79jasper is the bricknose the same as the bull with the headlight switch suffering from the power and being fixed with the relay kit? If that is the case, that could be the issue?

Maybe an issue with dimmer switch?

 

[79jasper]

Technically that's all fords, well up into the 2000's. Maybe 2008 they started using relays.
But he said he replaced the switch and plug.

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[Scotty4]

Well I would check fuses then double check my wiring. All too often does a butt connector seem tight and isn’t the best crimp.

 

[laserjock]

Fuses and fusible link wires. Dimmer switch next.

 

[mikeboggess]

79jasper, thanks for the link,I copied the f.b. dia. and put it in the glove box.
laserjock, dead on right 'bout the dimmer switch, after I changed out the fried (needed to be done anyway) headlight switch connector and h.l. switch still had no lights, 'till I came back to the 'ol computer and saw your reply. Went out hit the dimmer and wow!, I had lights. Boy, that dimmer switch was a b$#ch to get to.