Troubleshooting Trailer Wiring Running Light Circuit that Does Not Work with Vehicle
Updated 02/26/2018 | Published 02/25/2018
Question:
If trailer work fine when connected straight to battery is wiring good . plug into truck running light comes on goes off. 2015 dodge 1500
asked by: Alfred
0
Expert Reply:
If you ran a jumper wire to your trailer's running lights and they came on but not with the vehicle's wiring you most likely have a vehicle wiring issue.
Test the running light circuit with a circuit tester like part # 3808 like what you see in the attached video and we'll know more. Most likely it's a blown trailer wiring fuse under the hood of your truck.
expert reply by:
Jameson C
0
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