Can Trailer Wiring Function be Tested without Trailer Connected
Updated 05/25/2018 | Published 05/24/2018
Question:
Have a 2014 Ford F-150 4x4. Can i test the lights , brakes, and turn signals without hooking up the truck to the Motor home or does the MH and tow truckhave to be grounded together by way of the tow bar assemble. Plug up my wiring cable from the ford truck to one of my service van,, but could not get the lights, brake, or turn signals to come on. Thanks
asked by: Thomas S
Expert Reply:
You can definetely test the pins of your trailer connector for correct voltage without a trailer connected. If you check out the video I attached you can see how this is done with a similar 4-way connection.
Another option you have would be an emulator tester like the part # 6562 which would plug right into your 7-way (if that's what you have) and with it's light displays for each circuit you'll know if all of the circuits are active.
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on Flat Tow Wiring Harness
