Orange/orange-black Wires Under Dash?

[Gunny65]

I have an 89 Blazer. Under the dash are two wires not connected to anything. As stated in the title, one is Orange, the other is Orange-Black. When I put a meter on them it has a ignition off constant voltage of 25.8 Volts. (Update: I checked the wiring with the meter in the wrong position. I checked it using the correct position and the readings follow). The actual readings are as follows: Ignition off - 12.18, Ignition on - 11.89, Engine running - 14.2.

I assume it is for some aux piece of equipment. Before I use it, I just wanted to know what it would normally go to. I plan on hooking my CB up to these two wires.

 

[TheBeast_88K5]

I wanna say those are leads for your "courtesy" lights.
The ones that illuminate the foot well.

 

[Gunny65]

I wanna say those are leads for your "courtesy" lights.
The ones that illuminate the foot well.

Could be, I would think the power to those would go off when the doors are closed.

 

[Russell]

Could be, I would think the power to those would go off when the doors are closed.

The doors actually ground the circuit, the lights always have 12V supplied to them. The orange / black wire may hook up to your park / neutral switch at the base of the steering column, look to see if it is there or not.

 

[lectric80]

Not certain on the orange/black, but the orange is the dome light circuit which always has power. Ground is supplied by either the door switches or the headlight switch. It is possible the orange/black is the cigarette lighter circuit, but I am nowhere near my Blazer to verify. My CB is run off the orange wire.

 

[chulisohombre]

my orange is to the light in the glove box.same since 70s.orange black on mine is courtesy light power i believe.

 

[Gunny65]

Well one is ground the solid orange is hot. It is constant power so I hooked me CB up to it. Works great. Almost have that rat nest of wires cleaned up. Thanks.

 

[owenst7]

On my '76, orange goes to my dome light and orange/black went to my cigarette lighter plug. I believe the courtesy lights were connected off the cigarette lighter, but it might have been solid orange. I think white went to the dome light too.