73 barracuda tries to run only in the start position.

[Challenger RTA]

that black wire i'm talking about is twelve volts..

OK that I'm not sure of.

 

[Flathead31coupe]

This is the wiring diagram I was talking about.If you look at the driver's side door sweat

 

[Challenger RTA]

All I can say is that the color is different than stock wiring. It should connect to the door sw. Not sure if you have the right door sw. That wire you are showing goes to the dome light. The dome light is powered by the door sw and the dimmer sw.

 

[Flathead31coupe]

All I can say is that the color is different than stock wiring. It should connect to the door sw. Not sure if you have the right door sw. That wire you are showing goes to the dome light. The dome light is powered by the door sw and the dimmer sw.View attachment 152508

Is the 73 barracuda body wiring different than the challenger wiring....

 

[Challenger RTA]

I do think there were different A01 door switches some years. I know 71 is different then 72.

G

Post in thread 'complete dash harness replacement and the signal lights don't work'

Jan 19, 2026

turns out , a new signal flasher resolved the signal lights. still haven't resolved the map light door switch dome light issue (power to one pin , but not the one that is toggled by the door switches.) i reviewed all power supply issues and thinking that i should verify grounds ( as you mentioned earlier.)

• Golden Boy

 

[Flathead31coupe]

I do think there were different A01 door switches some years. I know 71 is different then 72.

I found this may help explain it lol... four a seventy three barracuda...

 

[Challenger RTA]

The wiring in general is the same. There are some added or subtle differences over the years. Like you seen with the door switches. The the California spec That's highlighted in yellow. Don't know what you might come across. 73 and up electrically assisted choke control?

 

[Flathead31coupe]

The wiring in general is the same. There are some added or subtle differences over the years. Like you seen with the door switches. The the California spec That's highlighted in yellow. Don't know what you might come across. 73 and up electrically assisted choke control?View attachment 152512

Ok ty.

 

[Flathead31coupe]

Here's one for you.I have no power on number 5 on the fuse box which I believe does.My dash lighting trying to figure out the main wire where it gets the power from.. Sometimes it makes your head hurt.Looking at all those wiring schematics , l o l

 

[Challenger RTA]

Look at the fuse box in the diagram post #6. One side is marked Batt. When the battery is hooked up there is always power there. On the ACC side there is only power there when the key is on. This is the back side of the fuse box. Note the bus on the red and black side do not go the whole way. The orange wire that is on the top left. It is for the dash lights.

 

[Flathead31coupe]

Look at the fuse box in the diagram post #6. One side is marked Batt. When the battery is hooked up there is always power there. On the ACC side there is only power there when the key is on. This is the back side of the fuse box. Note the bus on the red and black side do not go the whole way.

It looks like the dark blue wire that comes from the Ignition switch feeds 12 V to the number five fuse , which I do not have voltage at..

 

[Flathead31coupe]

Look at the fuse box in the diagram post #6. One side is marked Batt. When the battery is hooked up there is always power there. On the ACC side there is only power there when the key is on. This is the back side of the fuse box. Note the bus on the red and black side do not go the whole way. The orange wire that is on the top left. It is for the dash

Look at the fuse box in the diagram post #6. One side is marked Batt. When the battery is hooked up there is always power there. On the ACC side there is only power there when the key is on. This is the back side of the fuse box. Note the bus on the red and black side do not go the whole way. The orange wire that is on the top left. It is for the dash lights.View attachment 152515

You are correct.I have no power there with the key on or off

 

[Challenger RTA]

The dark blue with a white tracer. Is ignition 1. In short. Go to the steering Column plug and recheck both sides again.

A bit more if how things get power.
Take notice to the diamond shapes with numbers in them. Those are the splices.

Steering column plugs. Ignition switch connections. __1: S2-12Y start wire.__2: Q2-12 BK fuse box ACC feed and wiper motor feed..__3: J2A-12DBL with tracer, feeds slice 2, brake warning light, seat belt light and bulkhead connector 23.__4: J3-12BR bulkhead connector 22.__5 J1.12R power feed from splice one. __6:E2A-18 ORange,E2-18O feeds instrument cluster lights and turn signal flasher.