The 4 prong plug on the rear of a RX350 for trailer wiring,
Drivers side rear quarter panel has a 4 prong plug for connecting to a trailer wiring harness. My Rx 350 does not have a trailer towing package. The fuse panel has a designated fuse and has power but no power is getting to the rear of the vehicle? Does these vehicles require a separate wiring module for lighting, turn signals and brakes?
I have the same problem. Did you find out anything?
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