K3500 no lights at all

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Johnny89345

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I just went to pick up my 2000 k3500 i just bought and no lights work. Is there a seperate fuse or relay thata not in either of the fuse boxes?
 

Schurkey

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Why is this in "Engine Performance + Maintenance"?

Don't forget the possibility of a failed headlight switch.

The service manual will have a schematic of the circuitry for the various lights.
 

Supercharged111

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That's a no to the separate fuse question, I'd start with what Schurkey said. Also check and see if the wiring is factory or if it's been hacked on.
 

Johnny89345

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Why is this in "Engine Performance + Maintenance"?

Don't forget the possibility of a failed headlight switch.

The service manual will have a schematic of the circuitry for the various lights.

What page would you suggest i put it in? I just got the schematic. Im going to go back and try to trace it.
 

Eveready

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I would check for voltage at the headlight.

The failed headlight switch is a good possibility.
 

fancyTBI

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I’ll be the first to say it! “Check your grounds!”
 

Johnny89345

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I’ll be the first to say it! “Check your grounds!”

Thats the first thing i checked.
The truck is a m1028 with the 24 volt system. Its got a few switches mounted on the dash for blackout mode what ever that means. Ill send pics this weekend once i get the truck home!
 
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