Headlights won't turn on

[Diegothekid]

On my Jimmy, I turn on the headlights and only the passenger side lights come on, with side marker and then signal also turning on, but on the opposite side, nothing. The headlights, the turn signal, and the side marker don't come on. I'm currently at work so and I'm on my break so I can't check it out, but I'd like to get an idea of what's going on to tackle the problem quickly before it gets dark out, so does anybody know what could be the issue? Thank you!

 

[chevyfumes]

He has a 75... BTW.

Fuse should be for both sides but check anyway, then just start tracing the wires maybe something shorted out, bad ground and check the bulbs. IDK, hate electrical.

 

[chevyfumes]

Oh, and don't forget to check your..... PÆD!

 

[Carcinogen]

Bad ground would be my guess, it tends to do funny things with your lights.

 

[diesel4me]

Floor mounted dimmer switches like to rust up and "F" up too,I've had to replace them in both my van and pickup..usually both headlamps wont light up when they fail,but not always..

I think a '75 has no headlamp fuses,they only had a thermal overload breaker built into the headlamp switch on square bodys..

The ground wires that bolt to the radiator support may have gotten pulled off,or maybe the bulb(s) decided to just burn out..going by your symptoms I'd lean towards a ground problem..

 

[chevyfumes]

Gonna be my next post, check the Floor switch. Good call.

 

[Diegothekid]

Bad grounds, thank you guys for the help, I really appreciate it so much