68 Barracuda Instrument lights not working
Lets look at the fuse box from a '64 shop manual, removing the accessory that probably didn't come on your car.
Accessory feed Q2A is power through the key switch.
12 gage wire black.
Feeds three fuse slots.
Q3 come directly from the power circuit (battery and alternator) and is always hot if the battery is connected.
12 gage wire Red with stripe
Feeds two fuse slots.
One of these fuses protects the Dome, stop and tail light circuits.
If the diagram is to be beleived, these circuits are all spliced to wire M1.
Stop light circuit changes color after the switch on the brake pedal.
Dome light circuit wires change color after the dome light.
From M1 pink to yellow for returns M2.
Also Unlike 68 Barracuda, note the parking light circuit is connected to the headlight switch P terminal so they turn off when the headlights go on. Tail lights are on the R terminal, so they stay on.
But what you really need to do is look at what the non working circuits have in common.
Fuse is the first item they share. But they also share that with the stop light. If the stop light works, then the problem is after the stop light connection.
Its also possible there are two seperate failures.
Lets look at the fuse box from a '64 shop manual, removing the accessory that probably didn't come on your car.
Accessory feed Q2A is power through the key switch.
12 gage wire black.
Feeds three fuse slots.
Q3 come directly from the power circuit (battery and alternator) and is always hot if the battery is connected.
12 gage wire Red with stripe
Feeds two fuse slots.
One of these fuses protects the Dome, stop and tail light circuits.
If the diagram is to be beleived, these circuits are all spliced to wire M1.
Stop light circuit changes color after the switch on the brake pedal.
Dome light circuit wires change color after the dome light.
From M1 pink to yellow for returns M2.
Also Unlike 68 Barracuda, note the parking light circuit is connected to the headlight switch P terminal so they turn off when the headlights go on. Tail lights are on the R terminal, so they stay on.
But what you really need to do is look at what the non working circuits have in common.
Fuse is the first item they share. But they also share that with the stop light. If the stop light works, then the problem is after the stop light connection.
Its also possible there are two seperate failures.
