Running and Tail Lights Not Working on a Trailer
Published 07/07/2008
Question:
Your advice is GREAT! I have a 97 F250 HD gas model with 7 blade wiring harness [factory?] I have everything on my trailer working except marker and running/tail lights which are essential for night driving. Any possible solutions / shortcuts / patchwork. Ford says look in the control box under the hood / everything appears O.K.....HELP!
asked by: Robert
Expert Reply:
The first thing that I would do is use a circuit tester and determine if you are getting power through the connector (with the lights turned on.) If you are getting power there, just trace the wire back to the trailer, looking for broken, frayed, or pinched wires. If you have no power at the connector with the lights on, I would double check that under hood fuse box. Check with your owner manual to see which fuse relates to that circuit.
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