Wiring trouble

[Bonehead70GeTeX]

I have a 1970 GTX , I’m having trouble with left turn signal, and no headlight ?
Everything was working , I did some trunk work not on wires but mite have moved them around , any ways the left turn signal stop working , flashes worked brakes running lights work ,, then I noticed my headlights wasn’t working ?
,, I put new dash , tail , and engine harness few years ago , and new steering column at same time ,I’m at wits end , I’m only half *** YouTube mechanic , and less than that on wiring

 

[wagonman]

First thing check your grounds.

 

[PlymCrazy]

Do you have a factory service manual? Wiring diagrams in there to help you troubleshoot.

https://www.mymopar.com/downloads/servicemanuals/1970_Plymouth_Service_Manual.zip

 

[Bonehead70GeTeX]

Had a color diagram, can’t seem to find it , so I ordered a nother one today Ground is what I was thinking,, the headlights ground is on radiator support, what other grounds should I check?