The 4 prong plug on the rear of a RX350 for trailer wiring,

Asked by Mar 20, 2017 at 05:37 PM about the 2013 Lexus RX 350 AWD

Question type: General

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?  

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I have the same problem. Did you find out anything?

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