Question about Chevrolet Crew Cab
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Posted on Jan 02, 2017
7way- black is 12volt (power), brown, running lights, yellow is left turn signal and stop light, green is right turn signal and stop light, white is ground, blue is brakes, and orange is aux power (can be back up lights, if trailer equipped w/ them). 6way is the same, minus orange wire. I have run into some variations to the above color codes (brown, yellow and green only-sometimes these 3 are different than stated, but only mixed as that group, as to what they control- example would be green is running lights, brown and yellow are turn signal and stop lights, the others should be as stated), if you have any trouble with things not working properly, it may be due to these variations, although the above are pretty standard. If you have an ohm meter you can check as you go (check for power at black wire- should be constant 12v, turn on turn signal and check for power-it will fluctuate from approx. 12 volts to 0 volts as the signal power pulses in the wire) hit the brakes, blue wire should show power, etc. Let me know if you need more help as you go.
Posted on Apr 11, 2009
SOURCE: Trailer Brake Light Problem
try checking all the snap in connectors on the back side of the plug,
some times they get loose and/or corded.
if those are good you may have to run a wire trace. i'm not sure how much that would be, i charge 50.00 normally depending on the vehicle.
Posted on Aug 30, 2008
SOURCE: 2005 silverado trailer wiring
You may want to get a ground loop isolator or even cheaper. Go to radio shack and buy two 1amp diodes and put them on each turn signal wire. This will eliminate the problem. The diode will be black with a gray line. the line will go towards the trailer on each wire. this should take care of the problem.
Posted on May 08, 2009
SOURCE: Wiring problems
Six wire plugs:
Horse, stock or utility trailers:
White = Ground - GD
Yellow = Left turn/Brake -LT
Green = Right turn Brake -RT
Brown = Tail and clearance lights - TM
Red or Black (not both) = Battery, aux power - A
Blue = Electric Brakes - S
Ground should be 10ga.
Others 14 ga
Posted on Sep 09, 2009
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