Join Date: Sep 2016
Drives: 2016 Sorento SXL V6 AWD
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2016 Sorento V6 AWD Trailer Wiring Harness
I bought online and fitted the OEM Kia trailer wiring harness that plugs in behind the rear driver side wheel. Part number C6061-ADUS9. I followed the simple but very brief instructions but I have found a problem - it is always hot. Even when car is switched off, and locked, it is still providing power to the trailer lights. I have to unplug if the trailer is attached for any period of time when parked.
There seem to be three possibilities:
First the Kia loom always provides power to the trailer harness and it figures out somehow when the lights are off and disconnects power to the trailer i.e. the part is faulty.
Second, the car loom is faulty and shouldn't be providing power to the trailer harness.
Third - there's a step not documented in the instructions that involves changing something on the car itself. I did have to change a fuse rating as part of the kit but I'm confident I did that correctly.
I did call the (not very local) Kia dealership but they just said they'd need to have the car to investigate. I'll do that at the next service..... but does anyone have insights they'd like to share?