I just pick on up a Auto Dimming rearview mirror from another blazer and I'm not sure what the 3 wires are use for?

1 - Green - Not sure/maybe acc power
2 - Black - I'm thinking Ground.
3 - Brown - not sure/ maybe 12+ power

anyone know or have a wire diagram

 

What year are you driving and what year did the mirror come out of?

 

I have a 2002 and it came out of a 2000

 

Wiring diagrams attached:

 

ty , but iam not sure still lol , iam bad at read them

so Brown* is power

Green is power

black is ground

 

Brown is the main power. Black is the ground. I believe that the green wire disables the dimming of the mirror when backing up so you can use this or not.

 

I've just been given an auto dim mirror with 5 wires. From the diagrams you posted I'm not sure I can use it. Has wiring for automatic day/night signal.

 

You'll need to clue us in what vehicle the mirror came out of.

 

It's a GM mirror and I'm told off a Bravada he thought. I jut wonder if it will work with just he 3 main wires hooked up?

 

Without nailing down what it came from so someone can look up a connector pin-out... Helping here is going to be quite difficult.. Did the diagrams above help? Did you get the connector for the mirror?