Troubleshooting a Curt Wiring Harness on a 2012 Dodge Grand Caravan that Keeps Blowing Fuses

Published 10/14/2014

Question:

I have the Curt C56331 installed on my Dodge Grand Caravan 2012. All works good when testing the harness. For some reasons that I ignore, the fuse will eventually blow, even when not connected to a trailer. The fuse won’t blow instantly but will eventually blow. After changing the fuse, all works again and then blows again even when the harness is not used. I wonder if the power converter box is defect and draw too much power. Any possible answer on that? Thanks!

asked by: Yves A

Expert Reply:

Something is going on with the installation of the Curt Wiring Harness part # C56331 on your 2012 Dodge Grand Caravan. It should not be blowing the fuse under normal towing situations, but even more so without a trailer being connected. What I would recommend you do is go over all of the connections this harness makes to your vehicle to see if there is anything out of place that could be causing a short.

Also, check that there aren't any cut or exposed sections of the power wire between the fuse and converter box that would cause the wire to overdraw and blow the fuse.

I attached an FAQ article on troubleshooting 4-way installs for you to check out as well.

expert reply by: Jameson C