Reverse light wire location
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Veteran
Joined: May 2008
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From: Northern Illinois
Reverse light wire location
I would like to install some reverse lights on my truck and my trailer, I know the 7 pin harness already has power for this but I would like to turn them on by switch. Can anyone tell me where to find the wire under the hood and what color it would be.
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Joined: Mar 2009
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From: South GA
reverse is white with a light green stripe under the hood on the pass side firewall coming out of one of the harness plugs on the PCM
Test by having the truck in P and checking for 12v (should be 0v) and then either having someone help you or chock the wheel and set the parking brake and putting the truck in R and checking the wire again (should be 12v+)
Test by having the truck in P and checking for 12v (should be 0v) and then either having someone help you or chock the wheel and set the parking brake and putting the truck in R and checking the wire again (should be 12v+)