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Rear Lights out

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Old 04-03-2021, 03:06 PM
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Default Rear Lights out

01 3500, I plugged in 4-pin trailer now no rear lights at all, headlights do work. Relay, fuse, ground?
 
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Old 04-04-2021, 08:13 AM
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Do they start working again if you unplug the trailer?

Moving this to second gen ram section.
 
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Old 04-04-2021, 05:45 PM
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They do not work after disconnecting trailer, and the batteries run down if connected
 
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Old 04-04-2021, 05:47 PM
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Gotta short somewhere. Check fuses, trailer unplugged.... Have a look at where the trailer harness hits the rear harness.
 
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Old 04-04-2021, 05:53 PM
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Will check wires once it stops snowing, thanks
 



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