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Electrical tricks

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Old Oct 26, 2004 | 07:08 PM
  #1  
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redcedar
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Question Electrical tricks

1992 Ranger
My truck is shut OFF and the key is OUT of the ignition but if I turn the headlights ON the radio also comes ON.

I'm assuming this is not supposed to happen. Is there an easy solution to this small glitch.

My neighbour - who may or may not know anything about trucks - said the problem is likely in the wiring harness. . .???

I also think this may be why my new trailer lights aren't working properly.

Thanks
 
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Old Oct 27, 2004 | 02:04 AM
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Can we assume the problem arose only after the trailer lights were installed?
 
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Old Oct 27, 2004 | 11:02 AM
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Electrical tricks

Actually I was wondering if the trailer lights don't work properly because of this small glitch. (My purpose here is to get my trailer lights working properly).
When the trailer lights are hooked up they work except when I hit the brakes then they all go out.
I was told this is probably caused by a faulty ground but could the grouding problem be in the headlight switch and causing the trailer lights to screw up?

The lights set and the T-connection are all brand new and all the wires are connected properly including the white ground wire from the T-connectioin to the trailer plug and from the trailer plug to the trailer frame.
 
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Old Oct 27, 2004 | 11:07 AM
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unplug the trailer lights and try the headlights/radio thing again and see if the brake lights work ok.
Dave
 
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Old Oct 27, 2004 | 12:14 PM
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Electrical tricks

Yep, except for this small thing the truck lights work perfectly.
 
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Old Oct 27, 2004 | 06:15 PM
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I couldn't find it, but I read awhile ago on this forum (or was it the Explorer forum, which I also use?) that someone had problems with their headlights. There was no mention of the radio, but their problem was in the trailer light connector harness. Seems there was a chafed wire against the frame.

You might want to check this also...check each wire in your trailer lights harness one at a time. Make sure you have continuity through all the wires and no shorts to ground.

Good luck.
 
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