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  • 1974 - 1978 Mustang II Talk & Tech

75 mustang column/ignition switch wiring diagram

  • Thread starter Thread starter DFlikks
  • Start date Start date Aug 7, 2025
D

DFlikks

Member
Jul 4, 2025
10
8
13
New Brunswick, Canada
Aug 7, 2025
#1
  • Aug 7, 2025
  • #1
Currently doing a swap in my 1975 mustang and the wiring was all a mess. Pretty much had to cut a bunch of it out but got to gung ho and snipped the wired going to the top of the column on the ignition. I have a picture of the connector but im wondering if anyone has the diagram that shows what wires do what for when i get my engine wiring harness in. All the lights seem to be on their own separate harness. Much appreciated!
 

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LILCBRA

I wish I didn't have all of these balls in the air
Mod Dude
Dec 6, 2005
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Corn County USA
Aug 7, 2025
#2
  • Aug 7, 2025
  • #2
I'm sure I do, but my books are packed away since I'm in between residences. Hopefully someone else can help out.
 
D

DFlikks

Member
Jul 4, 2025
10
8
13
New Brunswick, Canada
Aug 7, 2025
#3
  • Aug 7, 2025
  • #3
I came across 2 diagrams. Ive gathered that the yellow goes to the starter relay, red/green is run, grey/yellow is crank and the black/green is accy. I just cant quite figure out what ones get connected to battery power. Im thinking from this picture its the green/black and grey/yellow. Then they must feed power to the red/green when its in the run position. Then key off kills power to red/green and shuts it all down. Let me know what you think
 

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