1990 Chevy truck wiring diagram

[kenny61]

I'm trying to figure out my cousins no headlight problem. The switch seems to be ok as i get continuity when I turn it on and off but I'm not sure if its switching on the ground side, positive side etc etc etec. . Anybody got an idea on how they are wired or have a link to schematic



Thanks in Advance

 

[Bob4x4]

Ck the dimmer switch

 

[kenny61]

hi low beam or interior light dimmer?

 

[Bob4x4]

Beam selector . Often times you can get them to work again by rapidly working the switch