We offer two universal-fit trailer wiring harnesses for your son's 1999 Cirrus; both can be seen on the link provided. These two harnesses that you referenced, the Curt # C56175 and the Tow Ready # 119178KIT, both do include a converter. This simply means that the harnesses adapt a 3 wire system on the towing Chrysler Cirrus to a 2 wire system on the trailer.
I suggest the Curt harness # C56175 since it offers slightly higher current capacity and is the lower-priced option. The linked... view full answer...
If all of the wires have voltage when the signal lights come on typically that is a sign of a shorted out converter box of the wiring part # HM48925.
You can test this by checking for voltage on all of the wires leading into the box to see if the correct voltage is on the wires when the appropriate turn signal is applied and then check the output side of the box. Is correct on the input side then the box is shorted out. If not then it is wired wrong.
Before you replace the harness check... view full answer...
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