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Running Lights Not Working With Reese Trailer Connector Adapter w/ LED Circuit Tester # 78118  

Question:

I have a 2013 ford F150 with a factory install trailer wireharness that has the 7 pole and 4 pole outlets on the back. I recently purchased a boat trailer that uses a 5 pole connector. Since the 5 pole connector needs an adaptor I went with the Reese tow adaptor the problem I see is that my brake lights work, right and left signals work but my running lights do not work. The LED lights work for the signs and brakes but not the running lights where do I start? I did not think the truck was old enough to have wiring problems.

1

Helpful Expert Reply:

Since you mention that the LED light on the Reese Trailer Connector Adapter, # 78118, isn't illuminating for the tail lights, it sounds like the issue is with the truck but this could be something as simple as dirt or corrosion in the 2013 Ford F-150's 7-way connector.

If the pin looks clean then the issue may very likely be a blown fuse or faulty relay.

If everything checks out to be fine and the running lights on your trailer still aren't functioning properly, please feel free to email me and I will be happy to provide you with additional suggestions to try and locate the issue.

expert reply by:
1
Leah S

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