As Chip said, look at the rear of the converter, there will be two 30 or 40A fuses, DONT LOOKI AT THEM, test with an OHM meter. then using the DC VOLTS scale, plug the trailer in and check for voltage at the two leads at the back. If you don't have 13VDC+ or better its toast. If you replace, consider upgrading the rating so it will charge 3 batteries easier.
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2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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