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Did I wire the headlights backwards?

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Old Nov 6, 2009 | 08:54 PM
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Danny Stroup
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Did I wire the headlights backwards?

'78 F150 4x4 Dentside 400 "S" VIN

I replaced both headlight wiring harnesses due to corrosion. The harness was colored red-green-black. I wasn't thinking, but the truck wires are also red-green-black and I wired them color-for-color.

The headlights work, but when the high beams are on the blue light is out. When I hit the HB floor switch, the blue light comes on and the high beams are off.

Obviously something is backwards, but since I just got the truck and the headlights didn't work, I wasn't sure if I reversed the wiring. Will swapping the red and greens correct the problem?
 
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Old Nov 6, 2009 | 10:50 PM
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Yes, swap them out at each headlight, and that should fix it.
 
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Old Nov 7, 2009 | 06:25 PM
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Thanks Dave. I'll swap 'em tomorrow. I had a brake failure today to deal with.
 
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