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www.allaboutcircuits.com > Textbook > Vol. V - Reference > Color Codes
Wiring for AC and DC power distribution branch circuits are color coded for identification of individual wires. In some jurisdictions all wire colors are specified in ...
Standard gm parking light color is brown. Typically the circuit controls all of the parking lights though, not just the rear. The headlights wiring gets more difficult due to the higheams.
find the wire that has power when the key is in the run position and off when the key is off and piggyback that wire.. Normally the radio is wired into the accessories wire so that you can listen to the radio without having power run through the coil and burning it out. That wire will have power when running and when turned to the accessories position.
Locate the wires running off
from the O2 sensor. There should be two. The black wire is the ground
wire. The other wire, which may vary in color, supplies power to the
sensor.
2
Connect the power lead to the corresponding connector on the chassis's wiring harness.
3
Connect the black, or ground, lead to the corresponding connector on the factory wiring harness.
3
wires, "how do i wire it" are simply explained. all universal 3 wire o2
sensors will have 2 wires one color, the other wire a different color.
the 2 that are the same color are ground and power for the heater and it
doens't matter which one is which. so ground to the motor, power from
the gray wire on the fuel pump, or anywhere you want to pull 12 volts
while the car is running. i have a dedicated fan relay that doesn't use
the ecm and runs off the key, so thats where i went. the different color
wire goes to the stock sensor wire, it's the signal.
red is ignition (switched power), black is ground. yellow is constant. you need to use the larger yellow wire. the smaller yellow wire is for operating a changer.
The power color is red,the negative lead is black,the constant power is yellow.Now for the speakers ,the white lead is the + and the white with the black line on it is the - wire ,grey wire + and grey with black line wire - ,green wire + and green wire with black line wire -,purple wire + and purple with black line -.Hope that clear your mind.
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