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[Derrickl112]

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[gimpyrobb]

This should help with some of the guess work:

http://www.steelsoldiers.com/showthread.php?37452-My-towing-light-setup-MV-s-Civi&highlight=civi

 

[av8or]

I know I have seen one before but I can't seem to find it now. Does anyone have a wiring diagram showing what pin does what for the towing light cables? I am making a few of these light bars, and would like to eliminate having to do a lot of trial and error.

where is that plug ( the one in the picture ) on your truck? I can't place it's location.

 

[Derrickl112]

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[73m819]

The nice thing about the towing light bar is that you ONLY need 4 wires L & R Turn/Brake, Ground, and Running Lights, there is NO NEED for black out lights, if you are going to plug into the tractor plug for the fifth wheel trailer, you could run ONE more wire for a HOT 24v lead to be used for a strobe or ? because the tractors have a 24v pin in the fifth wheel trailer plug, using 4 or 5 wire makes using 7 wire commercial trail cable

 

[Derrickl112]

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[gimpyrobb]

If it would help, I have a cable in the basement, I can check continuity. What numbers(actually, it would be letters) do you want checked?

 

[Derrickl112]

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[gimpyrobb]

on each socket there is letters.
truck side = light bar side

a=a
b=b
d=c
e=d
f-e
h=f
j=g
l=h

Let me know what else.

 

[Derrickl112]

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[gimpyrobb]

Darned if I know.


Who the heck is Wes Knettle?!

 

[Derrickl112]

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[ChevyC60]

Lightbar pinout

Lightbar pinout

A RIGHT BLACK OUT LIGHT
B LEFT TURN / STOP LIGHT
C GROUND
D TAIL / RUNNING LIGHTS
E BOTTOM BLACK OUT LIGHTS
F LEFT BLACK OUT LIGHT
G RIGHT TURN / STOP LIGHT​

H GROUND

 

[Jeff Nelson]

I fixed one for another member a while ago. If I remember correctly, I made a formal schematic of it. If it helps, I'll try to post it within the next day or so.

 

[Derrickl112]

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