1990 f250 electrical issue

[SumKindaRanch]

My trucks lights stopped working partially, I have replaced the switch but still only have running lights on the drivers side and no headlights. Also checked the switch connector and no burnt or melted plastic. Could it be the dimmer?

 

[Pino2234]

My trucks lights stopped working partially, I have replaced the switch but still only have running lights on the drivers side and no headlights. Also checked the switch connector and no burnt or melted plastic. Could it be the dimmer?

Check your high beam, low beam foot switch. My lights went out before and this was the culprit.

 

[franklin2]

Is the 1990 dimmer still on the floor? Those switches lead a rough life down there.

 

[Thewespaul]

They are on the floor till 92